Question

find the intercepts and then use them to graph the equation 5x+4y=20

Answer 1

to find x-intercept, set y=0 and solve for x.
to find y-intercept, set x=0 and solve for y.

Answer 2

how do i do that

Answer 3

let's find the x-intercept first. plug in a 0 for y:
5x + 4(0) = 20

now solve this.

Answer 4

x=4?

Answer 5

yes. that's your x-intercept. now set x=0 and solve for y.

Answer 6

still there?

Answer 7

yea but lost

Answer 8

set x=0 so your equation is
5(0) + 4y = 20

Answer 9

5=y?

Answer 10

yes, that's your y intercept. so now you have two points. just draw a line through these two points to show the graph:

Answer 11

use my sketch to draw it...