Piecewise Defined Functions

The piecewise function f(x) is graphed below. What is the value of f(5)? mc011-1.jpg

A) f(5) = -1

Which rules define the function graphed below? mc002-1.jpg

A) mc002-2.jpg

A cell phone company charges by the minute (and partial minute) for a phone call. Arionna's plan includes 300 minutes in the $20 base cost. If she uses more than 300 minutes, there is a $5 overage fee and an additional charge of $0.25 per minute. Which graph represents the cost of her plan per minute, where x represents the minutes used and y represents the cost?

A) mc014-1.jpg

The piecewise function f(x) is graphed below. What is the value of f(2)? mc010-1.jpg

B) f(2) = -1

Which graph represents the following piecewise defined function? mc007-1.jpg

B) mc007-3.jpg

Which of the functions graphed below is continuous?

B) mc019-2.jpg

Which graph represents the following piecewise defined function? mc005-1.jpg

D) mc005-5.jpg

The cheer squad is ordering small towels to throw into the stands at the next pep rally. The printing company has quoted the following prices. Which function defined below represents the cost of a towel order? "Growl" Towel Price Quote Number of towels ordered Cost per towel First 20 towels $5.00 For each towel over 20 $3.00

D) mc016-4.jpg

Which of the functions graphed below has a removable discontinuity?

NOT A (C) mc020-3.jpg)

A country is considering two income tax rates. Geoffrey is comparing what his tax bill would be under each plan. Under plan A, he pays 5% on the first $10,000. The next $85,000 is taxed at a rate of 10%. Any money earned above $95,000 is taxed at 15%. He made $98,000 last year. Which statement below is correct? Plan A Tax Rates x mc018-1.jpg $10,000 5% $10,000 mc018-2.jpg x mc018-3.jpg $95,000 10% x > $95,000 15% Plan B Tax Rates All levels of income 10%

NOT C