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Unit 5, Linear Functions

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  • A relationship where each x-value has only ONE y-value
    function!
  • What does the y-intercept (20) represent in this situation?
    The initial charge of renting games
  • What is the slope (rate of change) of this linear function?
    $15 per hour
  • Write an equation representing the situation
    y = -1x + 10
  • What was the candle's height at 5 hours?
    5 inches
  • The candle was 2 inches at what hour?
    8 hours.
  • What is the slope and y-intercept of the equation: 4x - 7 = y
    Slope: 4, y-int: -7
  • Which axis represents the dependent variable?
    y
  • The first number in the ordered pair
    x-value
  • Write an equation for the following: A plumber charges $50 to make a house call plus $40 for each hour worked.
    y = 40x + 50
  • What is the y-value in this ordered pair? (1,0)
    0
  • What is the independent variable?
    Number of hours
  • What do the following words/letters represent: independent variable, x
    input
  • The 2 numbers the name the locations of a point (#,#)
    Ordered pair, coordinate point
  • What is the slope and y-intercept of the equation: y = -3x + 12
    Slope: -3, y-int: 12
  • To find the slope of a line, we can calculate the ________ over _______
    rise, run
  • Which axis represents the independent variable?
    x
  • How fast is the candle burning? (rate of change/slope)
    1 inch per hour
  • What do the following words/letters represent: dependent variable, y
    output
  • The second number in an ordered pair
    y-value
  • What was the initial height of the candle?
    10 inches
  • If chocolate chip cookies cost $3.00 per cookie plus $2 for boxing them up in a decorated box, what would the expression be?
    y = 3x + 2
  • What is the x-value in this ordered pair? (-9,0)
    -9
  • What is the dependent variable?
    Height of the candle (inches)