Write the imaginary numbers using the letter i.
A. ±2
B. -2i
C. 2i
D. -i
Answer: C
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Find the focus and directrix of the parabola.y = -8x2
A. 
, y = 
B. 
, x = 
C. 
, y = -
D. 
, x = 
Solve the problem.The Cool Company determines that the supply function for its basic air conditioning unit is 
and that its demand function is 
, where p is the price. Determine the price for which the supply equals the demand.
A. $22.86 B. $22.36 C. $21.86 D. $21.36
Solve. Give your answer as a mixed numeral.Amy decided to bake bread and a cake. For the bread she needed 3
cups of flour. For the cake she needed 1
cups of flour. She had only 3
cups of flour. How much more flour did she need?
A.
2 cups |
B.
1 cups |
C.
1 cups |
D.
1 cups |
Write the quadratic function in the form y = a(x - h)2 + k.y = x2 - 6x
A. y = (x + 3)2 - 3 B. y = (x + 6)2 - 6 C. y = (x - 3)2 - 9 D. y = (x - 6)2 - 36