Question

Which of the following are the x and y intercepts of the equation 4x - 2y = 8?
A.(3, 0) and (0, 4)
B.(2, 0) and (0, 4)
C.(-2, 0) and (0, -4)
D.(2, 0) and (0, -4)

Answer 1

okay well the first thing to do is to put the equation in slope intercept form :)...\[y=mx+b\]

Answer 2

Okay...

Answer 3

so solve 4x-2y=8 for y :)

Answer 4

and tell me what you get :D

Answer 5

did you work it?

Answer 6

y=2x-4

Answer 7

great! :) ...okay so in the equation y=mx+b what does b represent? :)

Answer 8

I don't remember...

Answer 9

it represent the y-intercept :)

Answer 10

Ok

Answer 11

okay now look at this:

\[y=mx+b\]\[y=2x-4\]


so what's 'b' in y=2x-4? :)

Answer 12

you still there??

Answer 13

The 4?

Answer 14

-4 :)

Answer 15

so now you know your y intercept :D

Answer 16

y-intercept: -4
x-intercept: lets work this :)

Answer 17

Alright

Answer 18

so to find the x intercept....let 'y' be 0 in the equation 4x-2y=8 ...and then solve for x

Answer 19

solve for x:\[4x-2y=8\]\[4x-2(0)=8\]solving: \[4x-0=8\]\[4x=8\]\[x=2\]

Answer 20

so now....
y-intercept: (0,-4)
x-intercept: (2,0)

Answer 21

Did you get it? :D

Answer 22

Thank you!

Answer 23

your welcome...msg me if you have anymore questions :)