Question

On the function y=5x^2-2, what effect does the number 5 have on the graph, as compared to the graph of y=x^2? A. It stretches the graph vertically by a factor of 5. B. It stretches the graph horizontally by a factor of 5. C. It shrinks the graph horizontally by a factor of 5. D. It shrinks the graph vertically by a factor of 5.

Answer 1

\(\bf y = A ( Bx + C ) + D\)

A = stretch or expand factor

D = vertical shift, D > 0, up, D < 0 down

Answer 2

ummmm

Answer 3

\(\large \begin{array}{cllll}
y = {\color{blue}{ A}} ( Bx + C ) + {\color{brown}{ D}}
\\ \quad \\
y={\color{blue}{ 5}}x^2{\color{brown}{ -2}}
\end{array}\)

Answer 4

ok