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3 years ago

what is the value of y for the line that has a slope of 1 and goes through the points (-4,y) and(-2,8)

Mathematics

1 answer:

kozerog [31]3 years ago

7 0

Answer:

Step-by-step explanation:

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the slope m = 1 and the points (-4, y) and (-2, 8). Substitute:

$1=\dfrac{8-y}{-2-(-4)}$

$1=\dfrac{8-y}{2}$ <em>multiply both sides by 2</em>

$2=8-y$ <em>subtract 8 from both sides</em>

$-6=-y$ <em>change the signs</em>

$6=y\to y=6$

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2 years ago

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2 years ago

what is the value of y for the line that has a slope of 1 and goes through the points (-4,y) and(-2,8)​

what is the value of y for the line that has a slope of 1 and goes through the points (-4,y) and(-2,8)