Page 851 - Algebra 1

Graph each piecewise function.
(Ex 4)
g.
h. i.
(Ex 5)
j.
(Ex 5)
f(x)=⎨⎧4x if x<-2 ⎩2x+2 ifx≥-2
⎧ 3x if x ≤ 1
f(x)=⎨6x-3
⎩-x2 if x ≥ 2
Allowance A child less than 5 years old does not get an allowance. Starting at 5 years old, he gets 3 times his age per month. At 10 years, the rate increases to 4 times his age per month. Write the function that represents this information, and graph the function.
Rides At an amusement park, there are 15 rides that have no height requirement. If a person is at least 4 feet tall, there are a total of 20 available rides. To be granted access to all 24 rides in the park, a person must be at least 4.5 feet tall. Write a function that represents the number of available rides based on a person’s height. Sketch a graph of that function.
if 1<x<2
836
Saxon Algebra 1