Page 823 - Algebra 1

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Football A punter kicks a football straight up in the air from 2 feet off the ground with an initial velocity of 75 feet per second. Using y = -16t2 + 75t + 2, write an equation to model the situation and use the discriminant to determine if the ball will reach a height of 45 feet.
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Evaluate y = √x + 2 for x = 6. Round to the nearest tenth.
Multiple Choice What is the solution to the equation x3 - 27 = 0 ?
A 3 B 9 C 27 D 0
Model What is the equation for the parent function of a cubic equation?
Find the solution of x2 = 45. Round the answer to three decimal places.
Multi-Step Colin is experimenting with a type of cell that multiplies 5 times each day. a. On Monday, there are 500 cells. If all cells survive, how many are there on Friday?
b. Approximately one fourth of the cells die off each day. If the cells still multiply at the same rate, what rule represents a geometric sequence to represent the number of cells remaining each day?
c. Use the rule to find the number of cells on Friday if there are 500 on Monday. Multi-Step Tickets to a school play are sold to teachers for $3 each and to students
for $0.50 each. The drama class hopes to earn at least $200 from the ticket sales. The theater seats 250 people.
a. Write and graph a system of linear inequalities to describe the situation.
b. If 15 teachers buy tickets, is it possible for the drama class to meet their goal? Explain.
Estimate Estimate to the nearest whole number the value of the zeros for the equation 2v2 + 20v = 21.
Factor completely -88z3 - 2r2z3 - 30rz3.
Radioactive glucose is used in cancer detection. It has a half-life of 100 minutes. How much of a 320 mg sample remains in the body after 10 hours? First determine how many half-lives there are in a 10-hour period if the half-life is 100 minutes.
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Saxon Algebra 1