Question

Find the missing value so that the line passing through the 2 points has the given slope.

Answer 1

Answer:

y = 3

Step-by-step explanation:

Calculate the slope between the 2 points using the slope formula, then equate to - 3

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (12, - 12 ) and (x₂, y₂ ) = (7, y )

m = $\frac{y-(-12)}{7-12}$ = $\frac{y+12}{-5}$ = - 3 ( multiply both sides by - 5 )

y + 12 = 15 ( subtract 12 from both sides )

y = 3