MCLA Pre-Test CH 9 Name____________________________________________
9.4A Factoring
1) Factor the following function –6x2 – 4x
9.4B Application
3) Solve the following in simplest form
4𝑥 = 4𝑥 2 − 1
Period____
2) Factor the following 16x2 – 8x + 1.
4) Manufacturing estimates that its profit, P, in
hundreds of dollars, is
, where
x is the number of units produced in thousands.
How many units must be produced to obtain a
profit of $3433? Round down your answer to the
whole number.
MCLA Pre-Test CH 9 Name____________________________________________
10.4A Vertex
5) Determine whether the function’s vertex is a
maximum point or a minimum point and find the
coordinates of this point. State whether the value is a
minimum or maximum.
10.4B X-Intercepts
7) Find the x-intercepts for: 𝑦 = −20𝑥 2 + 13𝑥 + 15.
Period____
6) An arrow is shot upward and outward from a top
a 85-foot cliff, with an initial velocity of 144 feet
per second. The height of the arrow t seconds
after launch is given by the equation
. Find the greatest altitude
reached by the arrow. Round to the nearest foot.
8) After being shot into the air, the height of a rocket
is
, where h is the height above the
ground, in feet, after t seconds. After how many
seconds will the rocket be at a height of 182 feet?