Name: _____________________________________________________
Date: ___________________
Due Date: ______________________
Spiral Review # 15
Directions: Show all work! Even for multiple-choice problems! Explain your answers!
1) Simplify:
2) If h(x) = 2x2 + 3x + 1 , find h(-2)
(2a 2 c)2
ac3
3) Which ordered pair is NOT in the solution set of the 4) A sequence is defined recursively by:
system y < 2x + 4 and y > ½ x – 3
f(1) = 4
f(n) = f(n-1) + 3n
Find f(5).
1) (3,2)
2) (0,0)
3) (-1, -3)
4) (1,6)
1) 16
5)
2) 24
4) 46
6) What is the range of the function y = |x| - 3?
1) {y|y ≥ -3}
3){y|y > 0)
1) 1
3) 33
2) 6
3) -4
4) 4
2){x|x ≥ 3}
4) All Reals
7) Which of the following statements is true regarding 8) The graph of y = x2 is shown (the solid drawing)
the parabolic function below:
below. Write the equation for the graph of the
transformation of this function (the dotted drawing)
which shifts the function three units to the left and
one unit up.
1)
2)
3)
4)
9)
It is increasing from -2 to ¥
It is increasing from - ¥ to -2
It is increasing from -4 to ¥
It is increasing from - ¥ to 4
10. Express the area of a rectangle with the length of
x2 – 3x + 4 and a width of x -1.
BONUS: Amber has a prepaid phone plan that charges 18 cents for each text message and 15 cents per minute
for calls.
a) Write an equation for the cost, C, of sending t text messages and talking for m minutes.
b) Amber has $10 left on her plan, and wants to send 30 text messages. How much money will remain, if any,
on her plan after she sends the 30 texts?