Determine the intercepts of the line that passes through the following points.
(1,20)
(3,15)
(5,10)
what is the x-intercept?
what is the y-intercept?

Slope-intercept form: y = mx + b (m is the slope, b is the y-intercept or the y value when x = 0 -- > (0 , y))

To find the slope (m), you use the slope formula and plug in 2 points.

(x₁ , y₁) = (1 , 20)

(x₂, y₂) = (5 , 10)

   To find b, plug in a point into the equation (1,20)

   Add 5/2 on both sides

22.5 = b

Your y-intercept is (0, 22.5) or (0, 45/2)

The x-intercept is the x value when y = 0 ---> (x, 0)

To find the x-intercept, set y = 0 in the equation

0 = -5/2x + 22.5

-22.5 = -5/2x     Multiply -2/5 on both sides to get x by itself

9 = x

Your x-intercept is (9, 0)

44

step-by-step explanation:

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