When graphing the following equations, which one will be a straight line?
a.y=x^2+2
b.f(x)=2/3x+1
c.y=[x+4]
d.x^2+y^2=1

Question

When graphing the following equations, which one will be a straight line?
a.y=x^2+2
b.f(x)=2/3x+1
c.y=[x+4]
d.x^2+y^2=1

wolfe8 · Answer

A straight line will have a linear equation. A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable.

wolfe8 · Answer

May I ask if for c those are really brackets or absolute brackets?

anonymous · Answer

absolute brackets so its c right?

wolfe8 · Answer

Try and sketch it. It is straight, but what happens when x is negative?

anonymous · Answer

c is a straight line so the answer is c. am i correct?

wolfe8 · Answer

Did you sketch it? What about B?

anonymous · Answer

o i see what i did wrong. so b right?

wolfe8 · Answer

I believe so. What did you do wrong?

anonymous · Answer

i was graphing it wrong. and thank you

wolfe8 · Answer

You;re welcome. Pleasure to help someone learn.