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Vocabulary
Word Problems
Is it a function?
Solving for X
Grab Bag
100

Input

What is the x value, the independent variable

100

Martzia is ordering a custom pizza from MVV. They charge $12 for the pizza and $2.25 for each additional topping. Create an equation that represents the situation. 

y = 2.25x + 12

100
Is the following relation a function? {(-3,2),(-2,4),(-1,2),(5,4)}
What is yes?
100

15 - r = 8

r = 7

100

Is the point (3, -4) a solution to the equation 2y + 3x = -6?

no

200
Range
What is the output, the dependent variable, the y variable
200

An Uber driver charges a base fee of $3 plus an additional $0.50 per mile. Write an equation to represent the cost (y) in terms of x miles.

y=.5x+3

200

Is the following relation a function? {(-1,5),(2,5),(-1,5),(10,5)}

What is yes?

200

10 - 2a = 8a

a = 1

200

What is the value of x if the point (x, 3) lies on the line whose equation is 2x + 4y = 30?

9

300
Define vertical line test.
What is used to determine if the graph of a relation is a function. Each x should be assigned only one y value. no 2 points should be over each other.
300

Mikes's bank account had $1,260 at the start of the year. He withdraws $180 a month. Write a linear equation to represent the situation.

y=−180x+1260

300

Is the following relation a function? {(-1,5),(2,3),(4,2),(-1,2)}

What is no?

300

10p - 6p + 2 - p = 23

p = 7

300

What does 'm' represent in the linear equation?

slope or rate of change

400
Define function.
What is a set of ordered pairs where each x-value is assigned only one y value
400

A young sumo wrestler decided to go on a special diet to gain weight rapidly.

W represents the wrestler's weight (in kilograms) after t months.

W=80+5.4t

What was the wrestler's weight before his special diet?

80 kgs

400
If the graph of a relation was a circle, would the relation be a function?
No
400

–4(–3n–8)=10n+20

n = -6

400

What does 'b' represent in a linear equation?

starting point or the y-intercept

500

What is the formula for a linear equation?

What is y=mx+b?

500

S represents the size of the files on the drive (in megabytes) after t seconds.

S=5t+45

How many megabytes are transferred every 10 seconds?

50

500
Is a horizontal line a function?
yes
500

(6k+4)/2=2k–11

 k = -13

500

A fitness club charges $40 to join plus $10 per month. If Jason has $180 to spend, how many months can he afford to pay for in advance?

14 months