Ask your own question, for FREE!
Mathematics 16 Online
OpenStudy (anonymous):

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

OpenStudy (meowlover17):

2

OpenStudy (meowlover17):

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

OpenStudy (anonymous):

plz tell me why

OpenStudy (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|

OpenStudy (meowlover17):

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

OpenStudy (meowlover17):

Thats it.

OpenStudy (meowlover17):

Medal or fan???

OpenStudy (anonymous):

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

OpenStudy (meowlover17):

Go aheda i'll help if i understand it

OpenStudy (meowlover17):

ahead*

OpenStudy (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)

OpenStudy (meowlover17):

One moment let me graph this.

OpenStudy (meowlover17):

first off do you know how to graph it??

OpenStudy (anonymous):

kk

OpenStudy (anonymous):

a little bit

OpenStudy (meowlover17):

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

OpenStudy (meowlover17):

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

OpenStudy (meowlover17):

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

OpenStudy (anonymous):

i know it your y-intercept is 8

OpenStudy (meowlover17):

https://www.desmos.com/calculator

OpenStudy (meowlover17):

yes your y-intercept is 8

OpenStudy (anonymous):

i don't see anything on the website

OpenStudy (anonymous):

how do you even use this graphing calculator

OpenStudy (meowlover17):

plug in your equation.

OpenStudy (anonymous):

the whole thing

OpenStudy (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

OpenStudy (meowlover17):

Yes

OpenStudy (anonymous):

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

OpenStudy (meowlover17):

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

OpenStudy (meowlover17):

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

OpenStudy (anonymous):

no

OpenStudy (meowlover17):

no, is correct and what does this mean?

OpenStudy (meowlover17):

is it a function or nonfunction?

OpenStudy (anonymous):

that it is a linear function

OpenStudy (meowlover17):

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

OpenStudy (meowlover17):

Your third choice would be correct.

OpenStudy (meowlover17):

anything else?

OpenStudy (anonymous):

it is number three

OpenStudy (meowlover17):

Yep your right,

OpenStudy (anonymous):

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

OpenStudy (meowlover17):

Alright ill be here

OpenStudy (anonymous):

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

OpenStudy (meowlover17):

Alright.

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!