Question

In the standard form of the absolute value function, f(x) = a|x − h| + k, what is the significance of coefficient a?

Answer 1

These absolute value graphs look like V's. Either V or upside down V. That "a" will affect the width of the V making it skinnier or wider.

Answer 2

If that a is positive it will be a V. If it's negative, the V shape will be upside down.