Week 4 Tuesday

Week 4 Tuesday

y = mx+ b

Word Problems

What words represent m(x)?

• each

• every

• per

• an

• look for words that indicate time

y - intercept

• the number by itself

• fee

• starting amount

• initial amount/cost

Multiple Choice

In order to join a dancing club, there is a $30 startup fee and a $4 monthly fee. Write an equation in slope-intercept form that models this situation.

• y = 30x + 4

• y = 30 + 4x

• y = 30x - 4

• y = 30 - 4x

Multiple Choice

Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.

• y= 4 + 1.50x

• y= 4x + 1.50

• y= 4 - 1.50x

• y= 4x - 1.50

Multiple Choice

Cameron is designing a calendar as a fund-raising project for math class. The cost of printing is $500, plus $2.50 per calendar. Write an equation in slope-intercept form that models the total cost of printing the calendars.

• y = 2.50x - 500

• y = 2.50 - 500x

• y = 500x + 2.50

• y = 2.50x + 500

Multiple Select

When visiting Baltimore, MD, you need to rent a taxi to get from your hotel to the National Aquarium. The taxi company charges a flat fee of $3.00 for using the taxi and $0.75 per mile. Write an equation in slope-intercept form. Check all that are correct.

• y = 3.00 + 0.75x

• y = 3.00x + 0.75

• y = 0.75 + 3.00x

• y = 0.75x + 3.00

Multiple Select

An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the situation. Check all that apply

• y = 2000x +30000

• y = -2000x +30000

• y = 30000 + 2000x

• y = 30000 - 2000x