Question

Find the value of y so that the line through the points has the given slope.

(8, 9) and (-2, y); slope: 1/5
help please ​

Answer 1

Your answer should be -7

Explanation:

Using the equation y1 - y2 / x1 - x2 = m (m is slope)

9 - y / 8 - (-2) = 0.2 (0.2 is the decimal form of 1/5)

9 - y / 8 + 2 = 0.2

9 - y / 10 = 0.2

9 - y / 10 * 10 = 0.2 * 10

9 - y = 2

9 - y - 9 = 2 - 9

y = -7

Hope this helps!