Linear Modeling

A Sprint cell-phone plan charges a $0.50 connection fee and then $0.05 a minute for each call.

​ ​ (a)   is the independent variable and​ ​ ​ (b)   is the dependent variable

​ (c)   ​ is the slope (d)   is the y-intercept

• Length of Call (minutes)
• $0.50
• Cost of call
• $0.05
• cell-phone
• Sprint

Tags

CCSS.8.EE.B.5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Mario’s Pizza charged $7 for a medium pizza plus $0.75 per additional topping.

The independent variable: x is ​ (a)  

The dependent variable: y is ​ (b)  

• the number of toppings
• the cost of the pizza
• the size of the pizza
• Mario

Tags

CCSS.HSF-BF.A.1A

Mario’s Pizza charged $7 for a medium pizza plus $0.75 per additional topping.

x: number of toppings y: cost of pizza

Write the equation for the cost of the pizza in slope-intercept form.

​ (a)  

• Mario

A taxi ride in Boston costs $11 for 2 miles and $18 for 4 miles.

The independent variable (x) is ​ (a)  

The dependent variable (y) is ​ (b)  

• the distance of the ride in miles
• the cost of the ride
• $11 / $18
• the taxi
• Boston

Tags

CCSS.6.EE.C.9

A taxi ride in Boston costs $11 for 2 miles and $18 for 4 miles.

There are two points (x,y) given in this question. What are they (select two answers)

• (2,11)

• (11,2)

• (18,4)

• (4,18)

A taxi ride in Boston costs $11 for 2 miles and $18 for 4 miles.

What is the correct calculation for the SLOPE of the linear equation that passes through the two points (2,11) and (4,18) given in the equation.

Tags

CCSS.8.EE.B.5

Suppose that Hannah plans to pay off a no-interest loan from her parents. Her loan balance is $1,000. She plans to pay $250 per month until her balance is $0.

The independent variable (x) is ​ (a)  

The dependent variable (y) is ​ (b)  

• time in months
• loan balance
• $1000
• payment amount
• interest
• Money Hannah's parent have in the bank

Tags

CCSS.6.EE.C.9