8. What is the slope of the graph below

The answer is (0.5,10) mate

20

Step-by-step explanation:

We need two points to use the slope formula

(0,0) and ( 4,80)

The slope is given by

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

    = ( 80-0)/(4-0)

   = 80/4

  = 20

The slope is 20

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)