If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one."f(x) = -8x2 + 9
A. f -1(x) = 
B. Not one-to-one
C. f -1(x) = ± 
D. f -1(x) = 
Answer: B
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Solve the problem.A projectile is fired vertically upward. Its distance s (in m) above the ground is given by 
where t is the time 
. Find the acceleration of the projectile.
A. 9.8 m/s2 B. -4.9 m/s2 C. 389.2 m/s2 D. -9.8 m/s2
Find |u x v| correct to three decimal places where |u|= 14, |v|= 9, ?? = 80°.
What will be an ideal response?
Find the equation of the line that has the given slope and passes through the given point.m = 3, (-2, 7)
A. x = 3y + 13 B. y = 3x - 13 C. x = 3y - 13 D. y = 3x + 13
Solve the problem.Your bank account has $50 in it when you write checks for 
and $55. You then deposit $57 and $21. How much is in the account? Are you overdrawn?
A. $17, no B. $72, no C. $83, no D. -$83, yes