Vocabulary
Function or Not
Linear vs Nonlinear
Evaluate
Word Problems
100
What does the Rate of Change refer to?
Slope
100
Is the following a function or not? Explain.
Function; each input has exactly one output. The x values do not repeat.
100
Linear or Nonlinear?
Nonlinear.
100
What is the value of y when x=2?
y=8x+1
y=17
100
Write an equation using the following:
m=-4 & b=7
y=-4x+7
200
What is the term for the value of "b" in the equation y = mx + b?
Y-Intercept
200
Is the following a function or not? Explain.
Not a Function; The 5 has more than one output value. An x value repeats.
200
Linear or Nonlinear?
Nonlinear.
200
What is the value of y when x=-2?
y=5x-3
y=-13
200
Tina babysits after school and charges a flat fee of $3, plus $5 per hour. Write and equation for the total cost C, after h hours.
C=5x + 3
300
What does "initial value" mean? Or, what does it refer to?
starting point, y-intercept
300
Is the following a function or not? Explain.
(1, 2), (1, 3), (2, 4), (7,4) (3, 5)
Not a function; 1 had two output values. An x value repeats.
300
Linear or Nonlinear?
y = 7x - 3
Hint: what would the graph look like?
linear.
300
What is the value of y when x=-1?
y=4x+1
x=-3
300
A candle is 8 inches tall and burns at the rate of 1/2 inch per hour. Write a linear equation in slope-intercept form to represent the situation.
y= -1/2x + 8
400
A function is a math relationship where each input has __________ ______ output.
exactly one
400
Is the following a function or not? Explain.
Function; Passes the Vertical Line Test.
400
Linear or Nonlinear?
Linear.
400
y=3x-4.
What is the value of y when x=5?
11
400
A boat rental service charges a $20 transportation fee and $15 each hour to rent a boat. Write an equation and solve it to find how much it would cost for him to rent the boat for 6 hours.
**don't forget your label**
y=15x+20
$110
500
What does the "m" stand for in y=mx+b?
slope
500
Is the following a function or not? Explain.
(0,3), (7,4), (3,5), (8, 2), (7,4), (4,1)
**Really think about this one**
Function; Each input has exactly one output. (7,4) is just a repeated ordered pair.
500
Linear or Nonlinear?
(0,2)
(3,4)
(6,6)
linear
500
y=5x+1
What is the value of y when x=3?
16
500
Ronald collected 125 pounds of cans to recycle and plans to collect an additional 25 pounds per week. Write and solve an equation to tell how many weeks it will take Ronald to collect 400 pounds of cans.
**don't forget your label**
y=25x+125
11 weeks