An equation is something with a = sign btw and it’s C because it’s the only one with the = sign
20= -4t
20/-4= t
-5 = t
t is -5
It is the blue one. By doing the vertex formula we can see the x value of the vertex is -3/4. The blue one best represents that as the negative A value shows the parabola will be facing down too and have a maximum not a minimum for the vertex
Four times (x plus three) equals four times two
-7 is term in the given expression