How do you find the x & y intercept for 5x+3y=30?

1 Answer
Aug 6, 2016

The x-intercept is + 6 and the y-intercept is + 10

(6,0) and (0,10)

Explanation:

The x-intercept is the value for x when y=0, and
the y- intercept is the value of y when x=0.

Replace each variable in turn with 0 and solve.

5x + 3y = 30 Put zero in place of x and solve for y

5(0) + 3y = 30

(3y)/3 = 30/3

y = 10 The y intercept is + 10

5x + 3y = 30 Put zero in place of y and solve for x

5x + 3(0) = 30

(5x)/5 = 30/5

x = 6 The x intercept is + 6