Exponential functions are in the form f(x)=a(b)x−h+k. What does a negative "a" value do the graphed equation?

Moves the equation "a" spaces right
Moves the equation "a" spaces right

Moves the equation "a" spaces left
Moves the equation "a" spaces left

The "a" value can't be negative
The "a" value can't be negative

Reflects the graph over the y-axis
Reflects the graph over the y-axis

Reflects the graph over the x-axis

please answer as soon as possible for brainlist