North Gwinnett Middle School is sponsoring a pancake dinner to raise money for a field trip. Ms. Gilbert estimates that 200 adults and 250 children will attend. Let x represent the cost of an adult ticket and y represent the cost of a child ticket. Write an equation, in standard form, that can be used to find what ticket prices to set in order to raise $3800.
Equation: _______
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Question 2
2.
You are selling drinks at the carnival to raise money for your club. You sell lemonade for $2 per cup and soda for $3 per cup. Your sales totaled $240. Let x represent the number of cups of lemonade sold and y represent the number of sodas sold.
a. Write an equation in standard form that represents the situation.
Equation: _______
b. If you sold 60 cups of lemonade, how many cups of soda did you sell?_______
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Question 3
3.
Megan has $175 and makes $5 per hour walking dogs. Write the equation to model the situation in slope intercept form. (Use the variables x & y).
Equation: _______
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Question 4
4.
Jerry took a 20 minute Lyft ride and paid the driver $27.50. When he returned home there was a traffic jam. The ride home took 32 minutes resulting in a bill of $41.90. Write an equation to model the charge y (in dollars) in terms of x (the number of minutes) in point slope form.
Equation: _______
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Question 5
5.
The student council is ordering customized foam hands to promote school spirit. The table shows the cost (y) of ordering different numbers of foam hands (x). Write an equation to model the cost y (in dollars) in terms of x (the number of foam hands) in point slope form.
Equation: _______
Rewrite the equation in slope intercept form._______
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Question 6
6.
Lou has 450 jelly beans. He eats 20 jelly beans per week. Write the equation to model the situation in slope-intercept form (use x and y as the variables).
Equation: _______
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Question 7
7.
What is the slope, x-intercept and y-intercept of 10x + 15y = 30
The slope is _______ the x-intercept is _______ and the y-intercept is _______.
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Question 8
8.
What is the slope, x-intercept and y-intercept of -5x + 6y = -12
The slope is _______ the x-intercept is _______ and the y-intercept is _______.
* No decimals or mixed numbers.
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Question 9
9.
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Question 10
10.
Drag each item to the correct description of the relationship.
Positive Correlation
Negative Correlation
No Correlation
A city manager made a scatter plot of the number of retail stores in the city over the years. The scatter plot had a trend line with an equation:
y = 5x + 12
Where y is the total number of retail stores and x is the number of years since 2012.
Use this information to answer the three questions to the right.
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Question 11
11.
Mark and his family plan to move to the city in 2025. Use the equation to predict the number of retail stores there will be in 2025.
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Question 12
12.
When Darryl and his family moved to the city, there were 62 retail stores. Use the equation to determine what year Darryl’s family moved to the city.
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Question 13
13.
What does the y-intercept represent in this situation.
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Question 14
14.
The scatter plot shows the association between the depth of a scuba diver and water temperature.
What type of association (positive, negative, no) is shown between the depth of a scuba diver and the water temperature? _______ Does the data represent a linear or nonlinear relationship?_______ True or False? The data has a possible outlier._______
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Question 15
15.
Which statements are true?
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Question 16
16.
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Question 17
17.
A scatter plot was constructed on the graph below and a line of best fit was drawn. What is the equation for the line of best fit?
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Question 18
18.
A baseball coach graphs his players' hitting data and finds the line of best fit. The equation for the line of best fit is y = 0.32x - 10.51 where x is the number of times at bat and y is the number of hits. How many hits should he expect from a player who gets 180 at bats?
The player should get about _______ hits.
The table below shows the number of chapters and the approximate number of pages in several books.
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Question 19
19.
Use the data in the table to construct a scatter plot and draw the line of best fit.
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Question 20
20.
Which is a true statement about the scatter plot you constructed?
