Which of the following has a graph that is a straight line?
Equation 1: y = 4x^3 + 6
Equation 2: y = 5x − 4.5
Equation 3: y^2 = x − 1
Equation 4: y = 2x^2 + 6

- anonymous

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- MeowLover17

2

- MeowLover17

Equation 2 if you would like to know why let me know.

- anonymous

plz tell me why

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## More answers

- MeowLover17

Okay, so for every other equation something is being raised to an expoenent, when something is being raised to an exponent this means that the line will be curved to a degree like this. |dw:1432948202275:dw|

- MeowLover17

And if its under a radical then thats a whole different story.

- MeowLover17

Thats it.

- MeowLover17

Medal or fan???

- anonymous

oh and i have one more question if you don't mind

- MeowLover17

Go aheda i'll help if i understand it

- MeowLover17

ahead*

- anonymous

Which statement best explains whether y = 4x + 8 is a linear function or a nonlinear function?
It is a linear function because the graph contains the points (8, 0), (12, 1), (16, 2), which are on a straight line.
It is a nonlinear function because the graph contains the points (8, 0), (12, 1), (16, 2), which are not on a straight line.
It is a linear function because the graph contains the points (0, 8), (1, 12), (2, 16), which are on a straight line.
It is a nonlinear function because the graph contains the points (0, 8), (1, 12), (2, 16)

- MeowLover17

One moment let me graph this.

- MeowLover17

first off do you know how to graph it??

- anonymous

kk

- anonymous

a little bit

- MeowLover17

Okay what is the slope in this case? and what is the y-intercept?

- MeowLover17

remember y=mx+b m being the slope and b, being the y-intercept.

- MeowLover17

No, here ill graph it so you can better understand it, the y-intercept is the b

- anonymous

i know it your y-intercept is 8

- MeowLover17

https://www.desmos.com/calculator

- MeowLover17

yes your y-intercept is 8

- anonymous

i don't see anything on the website

- anonymous

how do you even use this graphing calculator

- MeowLover17

plug in your equation.

- anonymous

the whole thing

- MeowLover17

remember slope is rise over run, so you would start at positive 8 to graph this then go down 4 left 1 or up 4 right 1

- MeowLover17

Yes

- anonymous

now what do i do after i have plugged in the equation

- MeowLover17

Okay i have your answer, but i wont give it to you yet.

- MeowLover17

So, tell me does your graph have any repeating x coordinates??

- anonymous

no

- MeowLover17

no, is correct and what does this mean?

- MeowLover17

is it a function or nonfunction?

- anonymous

that it is a linear function

- MeowLover17

Correct. now between your first choice and third choice which one do you think is corect? based of the information it tells you

- MeowLover17

Your third choice would be correct.

- MeowLover17

anything else?

- anonymous

it is number three

- MeowLover17

Yep your right,

- anonymous

let me check if there is anything else that i need help with k

- MeowLover17

Alright ill be here

- anonymous

i am going to close this question and open a new one k

- MeowLover17

Alright.

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