Felicia's mistake is in Step 2. The correct step should be:
Step 2: h(x)= (x2−6x+ 9 )+7 −9
Step 2: h(x)= (x2−6x+ 9 ) - 2
With the corrected step, the vertex form of the quadratic function h(x) is:
h(x) = (x - 3)2 - 2
Therefore, the correct vertex is (3, -2), not (3, 2).
Felicia rewrote a quadratic function in vertex form.
h(x)= x2−6x+7
Step 1: h(x)= (x2−6x+ 9 )+7
Step 2: h(x)=(x2−6x+ 9 )+7 −9
Step 3: h(x)=(x−3 )2+2
Felicia said that the vertex is (3, 2). Is Cole correct? If not, identify the step in which Felicia made the mistake and correct her work.
1 answer