CCSS.Math.Content.8.F.B.4

Bob has $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

• y = 150 + 40
• y = 40x + 150
• y = 150x + 40

Tags

CCSS.Math.Content.8.F.B.4

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y + 7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y + 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

Tags

CCSS.Math.Content.8.F.B.4

Bob has $150 in his savings account and saves $40 per month.

• 150 + 40
• 40x + 150
• 150x + 40

Tags

CCSS.Math.Content.8.F.B.4

Is function represented by the table linear or nonlinear?

• linear
• nonlinear

Tags

CCSS.Math.Content.8.F.B.4

Easy Car Rental charges $8.50 an hour plus a rental fee of $25.50.

• y = 8.5 + 25.5
• y = 8.5x + 25.5
• y = 25.5x + 8

Tags

CCSS.Math.Content.8.F.B.4

Daniel is paid $10 per week for selling newspaper subscriptions.  He is also paid $3.50 for each new customer (x) that signs up for the subscription.  Which equation represents the amount (y) Daniel earns  per week?

• y = 3.5x
• y= x + 10
• y = 3.5x + 10
• y = 10x + 3.5

Tags

CCSS.Math.Content.8.F.B.4

What does 'b" represent in y=mx+b

• y-intercept
• beans
• x-intercept
• slope

Tags

CCSS.Math.Content.8.F.B.4

What is the equation of the line in point slope form given a slope of -12 and a point of (-4, -5)?

• y - 5 = -12(x - 4)

• y + 4 = -12(x + 5)

• y + 5 = -12(x + 4)

• y - 12 = -4(x + 5)

Tags

CCSS.Math.Content.8.F.B.4

Does the table show an exponential function pattern?

• Yes, there is a constant factor of 2

• Yes, there is a constant factor of -2

• No, it is linear there is a constant rate of change of 2

• No, there is no pattern

Tags

CCSS.Math.Content.8.F.B.4

What expression would best represent the following word problem:

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee.

• 25m

• 20m + 5

• 5m + 20

• 5m

Tags

CCSS.Math.Content.8.F.B.4