Unit 4 Review Probs (KWJ 2023)

An Uber driver charges a flat fee of $5 plus $0.90 per mile.  The function U(m)=0.90m + 5 represents the cost for each ride based on m miles.  What domain would best describe the function?

• All Whole Numbers

• All positive real numbers

• All whole numbers from 0-5

• All real numbers

Based on thos data how much do 30 bracelets cost?

(a)  

Tags

CCSS.7.RP.A.2D

Tags

CCSS.HSF.IF.A.2

Mia has $50.  Suppose the function f(x) = 2.5x +30 represents the cost of renting a kayak per hour.  How much more money will Mia need to rent the kayak for 15 hours?

(a)  

Tags

CCSS.HSF.LE.B.5

Which equation represents the graphed line?

• 2x - 3y = 12

• 2x + 3y = -12

• 2x - 3y = -12

• 2x + 3y = 12

According to the line of best fit, What is the initial weight of an alligator?

(a)  

Use the line of best fit to approximate the shoe size if Jack has a height of 72.5 inches. (Round to the nearest whole number)

(a)  

Tags

CCSS.8.EE.C.8C

Which variables are related by causation?

• height and grades

• grades and age

• amount of gas in a car and miles driven

• shoe size and height

Tags

CCSS.HSS.ID.C.9

At a Chinese buffet, the cost per ounce is $1.25, the container cost $0.50, how much would a to go contaner cost that weighed 18 ounces?

(a)  

Tags

CCSS.7.EE.B.3

The following equation represents the total cost a plumber charges for a repair visit

P(x)= 36x + 80

 

If x represents that the number of hours the plumber is at the repair visit, what does the 80 represent?

• the amount of time the plumber spends at the house

• The amount the plumber charges per hour

• The plumbers total bill for the customer

• The flat fee the plumber charges per visit

Tags

CCSS.HSF.LE.B.5