Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

Given: y = 3x - 4. What is the x-intercept? (0, -4) (0, 4/3) (4/3, 0)

OpenStudy (anonymous):

the equation is in y=mx+b form where m is the slope, x is the x intercept, and b is the y intercept

OpenStudy (anonymous):

because you have a variable instead of a number for the x intercept, you need to find what x is

OpenStudy (anonymous):

try graphing it. the y intercept is -4, which means there is a point of 0,-4

OpenStudy (anonymous):

on*

geerky42 (geerky42):

None. x-intercept is when y = 0. you just have to solve for x when y=0 x is not x-intercept, it's variable.

OpenStudy (catlover5925):

ok so ur formula is Y = Mx + b M is the slope B is the y intercept so graph -4 on the Y axis, then for ur slope go up 3 over right 1 till you hit the X-axis

OpenStudy (anonymous):

@Catlover5925 explained it a lot better than i was haha

OpenStudy (anonymous):

@geerky42 x is a variable that represents the x intercept

OpenStudy (anonymous):

are they anyways i can do it algebraically? im pretty sure there is i just forgot how

OpenStudy (anonymous):

http://www.purplemath.com/modules/strtlneq.htm looks like a good site(:

OpenStudy (anonymous):

it explains it pretty well on there

OpenStudy (anonymous):

figured it out take away 4 from both sides of the equation then divide by 3 right?

OpenStudy (anonymous):

so it would be C?

geerky42 (geerky42):

x-intercept is the value of x when y=0. Variable x itself don't really represent x-intercept.

OpenStudy (anonymous):

so im wrong?

OpenStudy (anonymous):

no, youre correct(:

OpenStudy (anonymous):

@geerky42 was referring to me

OpenStudy (anonymous):

oh okay! thanks so muchh guys,<33

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!