Question

When you multiply a function by –1, what is the effect on its graph?

Answer 1

Hello there

When we multiply a function by -1, the graphs flips over the x-axis.

Answer 2

Answer:

If a function f(x) multiplied by -1, the graph of f(x) reflect across x-axis.

Step-by-step explanation:

Let a function be f(x).

Multiply the function by -1 to get a new function g(x).

$g(x)=-1\times f(x)$

$g(x)=-f(x)$

If a function is defined as $y=-f(x)$, then the graph of function f(x) reflect across x-axis.

If a function is defined as $y=f(-x)$, then the graph of function f(x) reflect across y-axis.

Since g(x)=-f(x), therefore the a function f(x) multiplied by -1, the graph of f(x) reflects across x-axis.