Which are the roots of the quadratic function f(q) = q2 – 125? Check all that apply.
Answer:
The roots of the quadratic function is 5,-5.
Step-by-step explanation:
Given : Function \(f(q)=q^2-125\)
To find : The roots of the quadratic function?
Solution :
Step 1 - Write the function as equating to zero to find roots
\(q^2-125=0\)
Step 2 - Add 125 both side,
\(q^2-125+125=125\)
\(q^2=125\)
Step 3 - Taking the root both side,
\(\sqrt{q^2}=\sqrt{125}\)
\(q=\pm5\)
Therefore, The roots of the quadratic function is 5,-5.