Question

Tutoria
A line has a slope of -7 and includes the points (-9, 7) and (-8,k).
What is the value of k?
k =

Answer 1

Answer:

k= 0

Step-by-step explanation:

$\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }$

where (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate

$- 7 = \frac{k - 7}{ - 8 - ( - 9)}$

$- 7 = \frac{k - 7}{ - 8 + 9}$

$- 7 = \frac{k - 7}{1}$

k -7= -7

+7 on both sides:

k= -7 +7

k= 0