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Mathematics 20 Online
OpenStudy (inexilewetrust):

Answer Check, will medal!

OpenStudy (inexilewetrust):

OpenStudy (bibby):

find the y intercept

OpenStudy (inexilewetrust):

-3

OpenStudy (bibby):

only 2 of those lines hit the y axis at -3 now find the x axis

OpenStudy (inexilewetrust):

0?

OpenStudy (bibby):

whoops x intercept

OpenStudy (inexilewetrust):

Can you explain to me how to do that?

OpenStudy (bibby):

to find the y intercept, you set x = 0 and solve to find the x intercept, you set y = 0 and solve that's because y-intercepts are of the form (0,y) and x-intercepts are of the form (x,0)

OpenStudy (inexilewetrust):

0= 5/4x*3

OpenStudy (bibby):

y=5/4x-3 - replace y with 0 0=5/4x-3 3=5/4x x=?

OpenStudy (inexilewetrust):

2.4

OpenStudy (bibby):

that means it hits the x axis at 2.4

OpenStudy (inexilewetrust):

Okay so it is B or C. I think it is B....

OpenStudy (bibby):

remember the first part where I asked you to find the y intercept too?

OpenStudy (inexilewetrust):

yes?

OpenStudy (inexilewetrust):

Oh wait, y is 0...

OpenStudy (bibby):

the graph in question has: x-int: 2.4 y-int: -3

OpenStudy (inexilewetrust):

I mean the intercept

OpenStudy (bibby):

no it isn't?

OpenStudy (inexilewetrust):

Sorry, my mistake. I am getting confused here because to me, they both look the same.

OpenStudy (inexilewetrust):

The line is just going elsewhere

OpenStudy (bibby):

lolwut

OpenStudy (inexilewetrust):

I am saying the answer choice all look the same to me...

OpenStudy (bibby):

our equation is \(y=\dfrac{5}{4}x-3\)

OpenStudy (inexilewetrust):

Okay, I think C is the answer

OpenStudy (bibby):

|dw:1426028304203:dw| a y intercept of 3 looks like this

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