65
RCMultiple Choice
Modeling with Systems — Cumulative exam
Question 65 • MO-Algebra II A
Gabriella is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be modeled by where x and y are measured in inches. Where should she place the bulb to ensure a perfect beam of light?
Answer
A
6.5 in. to the left of the vertexB
6.5 in. above the vertexC
6.5 in. to the right of the vertexD
6.5 in. below the vertex