Linear Functions and Table of Values

What is the algebraic equation for this table?

• m = 480h

• h = m/480

• h + 480 = m

• 480 - h = m

• Function
• Not a Function

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

Find the output value when the input is 10

**** f(x) is Y ****

• 84

• 92

• 116

• 64

Easy Car Rental charges $8.50 an hour plus a rental fee of $25.50. Which equation represents the total charges for x hours?

• y = 8.50x + 25.50

• y = 25.50 + 8.50

• y = 8.50+ 25.50x

Which of the following situations could be descried by the equation y= -25x + 120

• There are 120 people in the football stadium, and 25 more are entering each hour.

• A plumber charges $25 for a house call and $120 per hour.

• A teacher has 120 students. Her third period has 25 students

• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

If I join the gym for a start up fee of $40 and monthly fee of $10, what are appropriate input values? (Equation: Y=40+10x)

• -4, -3, -2, -1, 0.....

• $10, $20, $30, $40......

• 0, 1, 2, 3.....

• only 1, 2, 3, and 4

If I join the gym for a start up fee of $40 and monthly fee of $10, what are appropriate outputs? (Equation: Y=40+10x)

• -4, -3, -2, -1, 0.....

• $10, $20, $30, $40......

• 0, 1, 2, 3.....

• $40, $50, $60.....

Look at the table below. Write an equation to match the pattern between m, minutes and bubbles blown, b.

• b = 12(m)

• b= m +12

• b = m ÷ 12

• none of these

Write the equation.

• f(x) = -5x + 1

• f(x) = x + 5

• f(x) = -2x

• f(x) = -5x + 6