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EmmaH
 2 years ago
please explain thi i dont get it:( Which of the following are the x and y intercepts of the equation 4x  2y = 8?
EmmaH
 2 years ago
please explain thi i dont get it:( Which of the following are the x and y intercepts of the equation 4x  2y = 8?

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AriPotta
 2 years ago
Best ResponseYou've already chosen the best response.0change it to slopeintercept form first

AriPotta
 2 years ago
Best ResponseYou've already chosen the best response.0divide everything by 2, then you'll be in slopeintercept form

AriPotta
 2 years ago
Best ResponseYou've already chosen the best response.0so now you can tell what the y intercept is. what is it?

elisichi
 2 years ago
Best ResponseYou've already chosen the best response.1Basically, what you do is you change it to y=mx+c first. If we rearrange it like that, it'd look like this: \[y=2x4\] Then you know that the yintercept is 4. To find the xintercept, you make y=0 and solve for x. \[0=2x4\] \[4=2x\] \[x=2\] So the yintercept is 4 and the xintercept is 2.

EmmaH
 2 years ago
Best ResponseYou've already chosen the best response.0ok what makes it a y intercept?

elisichi
 2 years ago
Best ResponseYou've already chosen the best response.1We know that when y=mx+c. C is always the yintercept and m is the slope :)

EmmaH
 2 years ago
Best ResponseYou've already chosen the best response.0ok so the answer is the last one?(3, 0) and (0, 4) (2, 0) and (0, 4) (2, 0) and (0, 4) (2, 0) and (0, 4)

phi
 2 years ago
Best ResponseYou've already chosen the best response.0Here is a short video http://www.khanacademy.org/math/algebra/linearequationsandinequalitie/v/xandyintercepts

elisichi
 2 years ago
Best ResponseYou've already chosen the best response.1Yes I would assume so!

EmmaH
 2 years ago
Best ResponseYou've already chosen the best response.0i have a computer block thing i cant watch videos sorry=(
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