What is the equation?

Answer:
y = -3x + 20
Step-by-step explanation:
Take 2 values of x and y and use the formula below to solve for the slope-
y2 - y1/x2 - x1
Substitute
17 - 20 / 1 - 0
Divide
-3/1 = -3
m = -3
y-intercept has been provided:
y = 20
Form an equation-
y = -3x + 20