atomickitten
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For each of the following, find the x-intercept and y-intercept and graph. I don't know how to find the x and y intercept because I don't know what to plug in to the equation. Someone PLEASE explain it to me!

For each of the following find the xintercept and yintercept and graph I dont know how to find the x and y intercept because I dont know what to plug in to the class=

Respuesta :

x-intercept is where graph crosses x-axis. y-value is zero

2x - 4y=6

x-intercept (y=0)
2x - 4*0 = 6
2x=6  /:2
x=3

y-intercept (x=0)
2*0 - 4y=6
-4y=6 /:-4
y=-3/2

answer:  for 2x-4y=6 x-intercept is 3, y-intercept is -3/2

-3x - 2y = 6
x-intercept is x=6/-3 = -2
y-intercept is y=6/-2 = -3

3x +4y = 12
x-intercept is x=12/3 = 4
y-intercept is y=12/4 = 3

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