Solve the problem.Find f(3) when f(x) = -x2 + 5x - 4.
A. -10
B. 20
C. 2
D. 28
Answer: C
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Find the slope of the line through the given pair of points, if possible. Based on the slope, indicate whether the line through the points rises from left to right, falls from left to right, is horizontal, or is vertical.(2.5, -4.2) and (0.3, -3.9)
A. 
; rises
B. - 
; falls
C. - 
; falls
D. 
; rises
Use properties of logarithms to write the expression in terms of logarithms of x, y, z.loga(8x2yz6)
A. loga8 - 2 logax - logay - 6 logaz B. 12 loga8xyz C. 8 + logay + logaz6 D. loga8 + 2 logax + logay + 6 logaz
Find the phase shift.y = 2 cos
A. 
units to the left
B. 
units to the right
C. 2 units down
D. 2 units up
Solve.A high school graduating class is made up of 482 students. There are 198 more boys than girls. How many girls are in the class?
A. 198 girls B. 482 girls C. 340 girls D. 142 girls