Question

Sometimes when you're graphing a linear equation, you get that u-shaped line called a parabola. And sometimes you get a v-shaped line,and I forgot what you call that..

Answer 1

You get a parabola from a quadratice equation, which is NOT linear.
A real v with a point on the bottom comes from y = m |x| or y = constant times absolute value of x
where m is any old constant number but zero

Answer 2

but is there a specific name for a real v with a point on the bottom?

Answer 3

Maybe, but I do not know it.