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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?
 one year ago
 one year 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?
 one year ago
 one year ago

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

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

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

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

EmmaH Group TitleBest ResponseYou've already chosen the best response.0
ok what makes it a y intercept?
 one year 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 :)
 one year 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)
 one year 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
 one year ago

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

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