Q. Write a quadratic function f whose only zero is −12.
Identify Zero and Factor: Identify the zero and the corresponding linear factor.Since −12 is the only zero, the linear factor is (x+12). Since it's the only zero, it must be a double root.
Write Quadratic Function: Write the quadratic function using the double root.The quadratic function is f(x)=(x+12)2.
Expand Quadratic Function: Expand the quadratic function.Using the formula (a+b)2=a2+2ab+b2, expand (x+12)2.f(x)=(x+12)2=x2+24x+144.
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