Rate of change and initial value from scenarios and graphs
Authored by Amanda Bruce
Mathematics
8th Grade
CCSS covered
Used 7+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If chocolate chip cookies cost $3.00 per cookie plus $2 for boxing them up in a decorated box, what would the equation be for this relationship if x is the number of cookies and y is the total cost?
y= 3 + 2x
y= 3x + 2
y= 3x + 2x
y= 5x
Tags
CCSS.6.EE.C.9
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A plumber charges $50 to make a house call plus $40 for each hour worked. What is the equation that represent this relationship if x is the number of hours worked and y is the to total cost?
y= 50x + 40
y= 50x + 40x
y= 40x + 50
y= 90x
Tags
CCSS.HSF-BF.A.1A
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Scott's Automotive charges a $35 fee to see your car plus $7 per hour to work on it. Write an equation that represents this scenario.
y= 35x + 7
y= 7x
y= 7x - 35
y= 7x + 35
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A holiday meal cost $12.50 a person plus a delivery fee of $30. Which equation represents the amount a holiday meal costs(y), including delivery, for x people?
y = 12.50 + 30x
y = 12.50x + 30
y = 12.50 + 30
12.50x = 30
Tags
CCSS.6.EE.C.9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. What information is given and what equation should you use?
A slope and a y - intercept is given; use y = mx + b.
A slope and a y - intercept is given; use y - y1 = m(x - x1).
Two points are given; use y - y1 = m(x - x1).
Two different items that add to a total are given; Ax + By = C
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.
y = 4x + 1.50
y = 1.50x + 4
y = -4x +1.50
y = 4x - 1.50
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
y = - 2,000x + 30,000
y = - 2,000x - 30,000
y = 30,000x + 2,000
y = -30,000x + 2,000
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