Ms. Kay is putting $450 in the bank for 7 years. The bank has a rate of 5%. How much will she earn in interest?
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Answer:
See below.
Step-by-step explanation:
Use the quadratic function f(x) = -x^2 - 6x. The parabola faces downward with y -intercept (-3,9) and zeros (-6,0) and (0,0). See the attached graph.
The axis of symmetry will serve as a ladder through the coaster at x = -3.
