Word Problem
What is the formula for the rate of change?
Change of Y / Change of X
or
(Y2 - Y1) / (X2 - X1)
(2,8) and (x,14) when the slope is 6/5.
What is x=7?
What does f(x) mean?
What is y
Is (18, 2) a solution of y = 8x + 2?
No
f(x)=3x2+2x−1
f(-2)
What is 7
Michael started a savings account with $300. After 10 weeks, he had $400. What is the rate of change of money in his savings account per week?
$10 per week
(20,15) and (x,12) when the slope is -3/7.
What is x=27?
A function is the relationship between a set of inputs and a reasonable set of outputs. Which variable represents the input and which variable represents the output?
What is Input is x and Output is y
Come up with an equation that represents the following values:
x: 1, 4, 7, 11
y: -2, 1, 4, 8
y = x - 3
The average rate of change between (3, 8) and (-2, 5)
What is 3/5
The value of Tony's investment was $1140 on January 1st. On this date three years later, his investment was worth $1824. What is the average rate of change?
$228 per year
(8,-3) and (10,y) when the slope is 5/2.
What is y=2?
When a function is a straight line what type of function is that?
What is Linear
Come up with an equation that represents the following values:
x: 2, 3, 6, 7
y: 8, 12, 24, 28
y = 4x
f(x) = 4/3x5 - 5x3 - 20x
f(3)
What is 129
A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change?
75 feet per hour
(8,y) and (11,15) when the slope is -7/3.
What is y=22?
A pair of numbers that can be used to identify a point on a coordinate plane is called
What is Ordered pair
Come up with an equation that represents the following values:
x: 100, 200, 300, 350
y: 190, 390, 590, 690
y = 2x - 10
f(x)=3x2+2x−1
f(a+h)
What is 3a2+6ah+3h2+2a+2h−1
After 30 baseball games, Derek Jeter had 25 hits. If after 100 games he had 80 hits, what is his average hits per baseball game?
55/70 = 11/14 = ~0.79
(x,9) and (15,13) when the slope is -4/5.
What is x=20?
One of the four regions into which the x- and y- axes divide the coordinate plane.
What is Quadrant
Come up with an equation that represents the following values:
x: 5, 8, 13, 22
y: 11, 20, 35, 62
y = 3x - 4
f(x)=(3x2+2x−1)/(x + 2)
f(-2)
Undefined/DNE