Question

image shows a graph with points (1,10) and (-1,4).
Write the equation of the linear function shown on the graph.

Answers

GPT 3.5
To find the equation of the linear function, we need to find the slope (m) and the y-intercept (b) of the line.

First, we find the slope:
m = (y2 - y1) / (x2 - x1)
m = (4 - 10) / (-1 - 1)
m = -6 / -2
m = 3

Next, we can use the point-slope form of a linear equation, y - y1 = m(x - x1), with the point (-1, 4):
y - 4 = 3(x + 1)

Now, we can simplify the equation:
y - 4 = 3x + 3
y = 3x + 7

Therefore, the equation of the linear function shown on the graph is y = 3x + 7.
Answer choices:
y=2x+2
y=2x−2
y=−2x+2
y=−2x−2
GPT 3.5
The correct answer choice is: y = 2x + 2

Explanation:
From the given points (1,10) and (-1,4), we calculate the slope using the formula:
m = (y2 - y1) / (x2 - x1)
m = (4 - 10) / (-1 - 1)
m = -6 / -2
m = 3

Now that we have the slope, we can use the point-slope form of a linear equation with the point (1,10):
y - 10 = 3(x - 1)

Simplifying the equation:
y - 10 = 3x - 3
y = 3x + 7

Therefore, the equation of the linear function shown on the graph is y = 3x + 7. This equation doesn't match any of the given answer choices.