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

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

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

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
y = 2x  4*
 2 years ago

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

EmmaH Group TitleBest ResponseYou've already chosen the best response.0
what is a y intercept?
 2 years ago

elisichi Group TitleBest ResponseYou've already chosen the best response.1
Basically, 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.
 2 years ago

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

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

EmmaH Group TitleBest ResponseYou've already chosen the best response.0
ok 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)
 2 years ago

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

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

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