Slopes & Y-Intercepts

At what rate did the rain fall?

• 2 cm per hour
• ¹/₄ cm per hour
• ¹/₂ cm per hour
• 4 cm per hour

Tags

CCSS.HSF.IF.B.4

Which statement matches the graph?

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Tags

CCSS.HSF.LE.B.5

Janice is saving money for retirement. The equation y = 500x + 12,000 models her retirement savings where y is the total she has saved in dollars, and x is the number of months.

Interpret the y-intercept.

• Janice started with $500 in her account

• Janice started with $12,000 in her account

• Each month, Janice saves an additional $500

• Each month, Janice saves an additional $12,000

Tags

CCSS.HSF.LE.B.5

What is the slope?

• $2/1 mile drive
• $1/2 miles driven
• 2 miles driven/$1 
• 1 mile driven/$2

Tags

CCSS.HSF.LE.B.5

An online music service lets customers download an unlimited number of songs for $0.25 each after paying a monthly membership fee of $5.00. The total amount of money a customer spends on music in dollars in a single month can be found using the function y = 0.25x + 5. What does the variable x represent in this function?

• The total amount of money the customer spends on music each month

• The number of songs the customer downloads each month

• The number of customers that use the music service

• The cost of downloading one song

Tags

CCSS.HSF.LE.B.5

In order to join a yoga club there is a $100 annual fee and a $5 fee for each class you attend. What is the meaning of the y-intercept?

• The fee per class.
• # of classes attended.
• Annual Fee.
• Total amount spent on yoga.

Tags

CCSS.HSF.LE.B.5

At what rate did the rain fall?

• 2 cm per hour
• ¹/₄ cm per hour
• ¹/₂ cm per hour
• 4 cm per hour

Tags

CCSS.HSF.IF.B.4

The graph shows the cost of dance lessons, y, and the number of dance lessons taken, x.

What is the rate of change of the cost of the dance lessons with respect to the number of lessons taken?

• Each dance lesson costs $10.00.

• The maximum amount a person will pay for dance lessons is $115.00

• The maximum number of dance lessons a person can take is 9.

• The registration fee to begin dance lessons is $12.00

Tags

CCSS.HSF.IF.B.4

The graph shows the cost of renting a moving truck, y, depending on the number of miles, x, the truck is driven.

What is the rate of change of the cost with respect to the number of miles driven?

• The daily fee of renting the truck is $40.00.

• The cost per mile to rent a truck is $0.50.

• The maximum amount of miles the truck can be driven is 24.5.

• The cost of renting a truck cannot exceed $53.00.

Tags

CCSS.HSF.IF.B.4

The graph shows the number of newspapers delivered and total pay for Leona’ newspaper delivery job.

What does the slope of this graph represent?

• The cost per newspaper

• The total cost of 20 newspapers

• The number of miles Leona travels

• The cost per mile

Tags

CCSS.HSF.LE.B.5