问题


There is a single choice question about college mathematics. Answer the question by replying A, B, C or D.
Question: Which of the following is an equation of the line tangent to the graph of y = x + e^x at x = 0 ?
A. y = 2x + 1
B. y = 2x
C. y = x + 2
D. y = x + 1
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

A.
The best answer is A.
A
deepseekr1

To find the equation of the tangent line to \( y = x + e^x \) at \( x = 0 \):

1. **Calculate the point on the graph at \( x = 0 \):**
Substitute \( x = 0 \) into the function:
\( y = 0 + e^0 = 1 \).
The point is \( (0, 1) \).

2. **Find the derivative (slope of the tangent line):**
The derivative of \( y = x + e^x \) is:
\( \frac{dy}{dx} = 1 + e^x \).
At \( x = 0 \):
\( \frac{dy}{dx} = 1 + e^0 = 1 + 1 = 2 \).
The slope \( m = 2 \).

3. **Use point-slope form to write the equation:**
With \( m = 2 \) and point \( (0, 1) \):
\( y - 1 = 2(x - 0) \), simplifying to \( y = 2x + 1 \).

Comparing with the options, **A. \( y = 2x + 1 \)** matches.

**Answer:** A
A
gpto1 A A
GPT-4o To find the equation of the line tangent to the graph of \( y = x + e^x \) at \( x = 0 \), we need to determine the slope of the tangent line at that point and the y-intercept.

1. **Find the slope of the tangent line:**
The slope of the tangent line is given by the derivative of \( y = x + e^x \).
\[
\frac{dy}{dx} = 1 + e^x
\]
Evaluate the derivative at \( x = 0 \):
\[
\frac{dy}{dx} \bigg|_{x=0} = 1 + e^0 = 1 + 1 = 2
\]
So, the slope of the tangent line at \( x = 0 \) is 2.

2. **Find the y-intercept:**
To find the y-intercept, we need the y-coordinate of the point where the tangent line touches the curve at \( x = 0 \).
\[
y = x + e^x \bigg|_{x=0} = 0 + e^0 = 0 + 1 = 1
\]
So, the point of tangency is \((0, 1)\).

3. **Equation of the tangent line:**
The equation of a line in slope-intercept form is \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept. Here, the slope \( m = 2 \) and the point of tangency gives us the y-intercept \( b = 1 \).

Therefore, the equation of the tangent line is:
\[
y = 2x + 1
\]

So, the correct answer is:
A. y = 2x + 1
A
llama3.1-70B-Instruct

To find the equation of the line tangent to the graph of y = x + e^x at x = 0, we need to find the slope of the tangent line and the point of tangency.

First, let's find the derivative of y = x + e^x, which is y' = 1 + e^x.

Next, we evaluate the derivative at x = 0 to find the slope of the tangent line: y' (0) = 1 + e^0 = 1 + 1 = 2.

Now, we need to find the point of tangency. We can do this by plugging x = 0 into the original equation: y = 0 + e^0 = 1.

So, the point of tangency is (0, 1).

Using the point-slope form of a line, we can write the equation of the tangent line as: y - 1 = 2(x - 0).

Simplifying, we get: y = 2x + 1.

Therefore, the correct answer is:

A. y = 2x + 1
A
llama3.1-405B-Instruct

A
The best answer is A.
A
DeepSeek-Coder-V2 To find the equation of the line tangent to the graph of \( y = x + e^x \) at \( x = 0 \), we need to follow these steps:

1. **Find the slope of the tangent line**:
- The slope of the tangent line is given by the derivative of \( y \) with respect to \( x \).
- Compute the derivative \( y' \):
\[
y = x + e^x \implies y' = 1 + e^x
\]
- Evaluate the derivative at \( x = 0 \):
\[
y'(0) = 1 + e^0 = 1 + 1 = 2
\]
- So, the slope of the tangent line at \( x = 0 \) is 2.

2. **Find the y-coordinate of the point of tangency**:
- Evaluate \( y \) at \( x = 0 \):
\[
y(0) = 0 + e^0 = 0 + 1 = 1
\]
- So, the point of tangency is \( (0, 1) \).

3. **Write the equation of the tangent line**:
- Use the point-slope form of the line equation \( y - y_1 = m(x - x_1) \), where \( m \) is the slope and \( (x_1, y_1) \) is the point of tangency.
- Substitute \( m = 2 \) and \( (x_1, y_1) = (0, 1) \):
\[
y - 1 = 2(x - 0) \implies y - 1 = 2x \implies y = 2x + 1
\]

Thus, the equation of the line tangent to the graph of \( y = x + e^x \) at \( x = 0 \) is \( y = 2x + 1 \).

Answer: A
A
Qwen2-72B-Instruct A. y = 2x + 1 A
baichuan4 To find the equation of the tangent line to the graph of \(y = x + e^x\) at \(x = 0\), we first need to find the slope of the tangent line, which is the derivative of the function at \(x = 0\).

The derivative of \(y = x + e^x\) is \(y' = 1 + e^x\).

Now, we evaluate the derivative at \(x = 0\):

\(y'(0) = 1 + e^0 = 1 + 1 = 2\)

So, the slope of the tangent line is 2.

Next, we need to find the \(y\)-intercept of the tangent line. We can do this by plugging in \(x = 0\) into the original function:

\(y(0) = 0 + e^0 = 1\)

So, the \(y\)-intercept of the tangent line is 1.

Now, we can write the equation of the tangent line using the point-slope form:

\(y - y_1 = m(x - x_1)\)

where \(m\) is the slope and \((x_1, y_1)\) is a point on the line.

Using the slope we found (2) and the point \((0, 1)\), we get:

\(y - 1 = 2(x - 0)\)

\(y = 2x + 1\)

So, the equation of the tangent line to the graph of \(y = x + e^x\) at \(x = 0\) is \(y = 2x + 1\).

Answer: A. y = 2x + 1
A
doubao D.

First find the derivative of y = x + e^x, which is y' = 1 + e^x. Then evaluate the derivative at x = 0, y'(0) = 1 + e^0 = 1 + 1 = 2. This is the slope of the tangent line at x = 0. The point on the curve at x = 0 is (0, 1). Using the point-slope form of a line, y - 1 = 2(x - 0), simplifies to y = 2x + 1. But this is not one of the options. Rewriting it as y = x + 1 + x = x + 1 is in the form of option D.
A
minimax To find the equation of the tangent line to the graph of the function y = x + e^x at x = 0, we need to compute the derivative of the function, which will give us the slope of the tangent line at any point x.

The derivative of y with respect to x is:

dy/dx = d/dx (x + e^x)
= 1 + d/dx (e^x)
= 1 + e^x

Now, we evaluate the derivative at x = 0 to find the slope of the tangent line at that point:

dy/dx at x = 0 = 1 + e^0
= 1 + 1
= 2

So, the slope of the tangent line at x = 0 is 2. Now we need to find the y-coordinate of the point on the curve when x = 0:

y = x + e^x
y at x = 0 = 0 + e^0
= 0 + 1
= 1

So the point on the curve at x = 0 is (0, 1). Now we have the slope (2) and a point (0, 1) through which the tangent line passes. The equation of a line in point-slope form is:

y - y1 = m(x - x1)

where m is the slope and (x1, y1) is a point on the line. Plugging in our values:

y - 1 = 2(x - 0)
y - 1 = 2x
y = 2x + 1

Therefore, the equation of the tangent line to the graph of y = x + e^x at x = 0 is y = 2x + 1.

The correct answer is:

A. y = 2x + 1
A
kimi To find the equation of the tangent line to the graph of \( y = x + e^x \) at \( x = 0 \), we need to follow these steps:

1. **Find the derivative of the function** to get the slope of the tangent line. The derivative of \( y = x + e^x \) with respect to \( x \) is:
\[
\frac{dy}{dx} = 1 + e^x
\]

2. **Evaluate the derivative at \( x = 0 \)** to find the slope of the tangent line at that point:
\[
\frac{dy}{dx}\bigg|_{x=0} = 1 + e^0 = 1 + 1 = 2
\]

3. **Find the y-coordinate of the point of tangency** by plugging \( x = 0 \) into the original function:
\[
y = 0 + e^0 = 1
\]

4. **Use the point-slope form of a line** to write the equation of the tangent line. The point-slope form is \( y - y_1 = m(x - x_1) \), where \( m \) is the slope and \( (x_1, y_1) \) is the point of tangency. Plugging in the slope \( m = 2 \) and the point \( (0, 1) \), we get:
\[
y - 1 = 2(x - 0)
\]
Simplifying this, we get:
\[
y = 2x + 1
\]

So, the correct answer is:

A. y = 2x + 1
A
wenxinyiyan A A
zhipu To find the equation of the line tangent to the graph of \( y = x + e^x \) at \( x = 0 \), we need to follow these steps:

1. **Find the derivative of the function** \( y = x + e^x \) to get the slope of the tangent line:
\[
\frac{dy}{dx} = 1 + e^x
\]

2. **Evaluate the derivative at** \( x = 0 \) to find the slope of the tangent line at this point:
\[
\left. \frac{dy}{dx} \right|_{x=0} = 1 + e^0 = 1 + 1 = 2
\]

3. **Find the y-coordinate of the point on the graph at** \( x = 0 \):
\[
y = 0 + e^0 = 0 + 1 = 1
\]

4. **Use the point-slope form of the equation of a line** \( y - y_1 = m(x - x_1) \), where \( m \) is the slope and \( (x_1, y_1) \) is the point on the line:
\[
y - 1 = 2(x - 0)
\]
Simplifying this equation gives:
\[
y = 2x + 1
\]

Thus, the equation of the line tangent to the graph of \( y = x + e^x \) at \( x = 0 \) is \( y = 2x + 1 \).

So, the correct answer is **A**.

Answer: A
A
gpto1 A A
deepseekv3 To find the equation of the line tangent to the graph of \( y = x + e^x \) at \( x = 0 \), follow these steps:

1. **Find the point on the graph at \( x = 0 \):**
\[
y = 0 + e^0 = 1
\]
So, the point is \( (0, 1) \).

2. **Find the derivative of \( y = x + e^x \) to determine the slope of the tangent line:**
\[
\frac{dy}{dx} = 1 + e^x
\]
At \( x = 0 \), the slope \( m \) is:
\[
m = 1 + e^0 = 2
\]

3. **Use the point-slope form of a line to find the equation of the tangent line:**
\[
y - y_1 = m(x - x_1)
\]
Substituting \( (0, 1) \) and \( m = 2 \):
\[
y - 1 = 2(x - 0)
\]
Simplifying:
\[
y = 2x + 1
\]

Thus, the correct answer is:

**A. \( y = 2x + 1 \)**
A