Question

Anya found the slope of the line that passes through the points (–7, 4) and (2, –3). Her work is shown below. Let (x2, y2) be (–7, 4) and (x1, y1) be (2, –3). m = = = The slope is . What error did she make? She simplified the denominator incorrectly. The denominator simplifies to –7. She labeled the points incorrectly. The point (–7, 4) should be (x1, y1). She used an incorrect formula. The formula should be the change in y-values with respect to the change in the x-values. She used an incorrect formula. The formula should be the sum of the x-values with respect to the sum of the y-values.

Answer 1

C

Explanation:

Answer 2

She used an incorrect formula. The formula should be the change in y-values with respect to the change in the x-values

Explanation:

we know that

The formula to calculate the slope between two points is equal to

`m=(y2-y1)/(x2-x1)`

we have

`(x2,y2)=(-7,4)`

`(x1,y1)=(2,-3)`

Substitute the values

`m=(4+3)/(-7-2)`

`m=(7)/(-9)`

`m=-(7)/(9)`

therefore

She used an incorrect formula. The formula should be the change in y-values with respect to the change in the x-values