College Algebra (Abridged)

Question 4: Solve for :

− 2 − 1 = + 4 (2 + 2)

a. − 2, 1 b. 0, 2 c. 5, − 1 d. 5, 0 Question 5: During practice, a softball pitcher throws a ball whose height can be modeled by the equation ℎ = 2 2 − 9 + 11 , where ℎ = height in feet and = time in seconds. How long does it take for the ball to reach a height of 7 feet? a. 1 2 seconds in going up, 4 seconds in coming down b. 1 4 seconds in going up, 2 seconds in coming down c. 2 seconds in going up, 2 seconds in coming down d. 4 seconds in going up, 2 seconds in coming down Question 6: What is the -intercept of the function, ( ) = ( − 5) 2 ? a. (0, 5) b. (0, − 5) c. (0, − 25) d. (0, 25) Question 7: For the exponential function ( ) = given that, 0 < < 1 , what is the -intercept? a. (0, 1)

b. (0, 2) c. (0, 0) d. (0, 4)

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