Question

Please help, 20 points. Please include description. thanks!! :)

Answer 1

a=3

Explanation:

N.B: I don't see any k. hence solving for a

The graph is a parabola.Thus the parent function
`p(x)=x^2`. Notice p(x) has been stretched vertically by a units impling a is a positive constant. We want to find a . Let's pick a point (1,3). we already know that p(x)=x² . so substitute 3 for r(x) and 1 for x and then solve for a. [showed below]

`r(x) = a \cdot p(x) \\ \implies 3 = a \cdot 1 \\ \boxed{a = 3}`