Open Up - Grade 8 - Mathematics - Unit 3 - Lesson 8
By Formative Library
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Last updated about 3 years ago
8 Questions
1 point
1
Question 1
1.
Select all equations that have graphs with the same y-intercept.
1 point
1
Question 2
2.
Create a graph showing the equations y = \frac{1}{4}x and y = \frac{1}{4}X - 5. Explain how the graphs are the same and how they are different.
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1
Question 3
3.
A cable company charges $70 per month for cable service to existing customers.
Find a linear equation representing the relationship between x, the number of months of service, and y, the total amount paid in dollars by an existing customer.
1 point
1
Question 4
4.
A cable company charges $70 per month for cable service to existing customers.
When the two equations are graphed in the coordinate plane, how are they related to each other geometrically?
1 point
1
Question 5
5.
A cable company charges $70 per month for cable service to existing customers.
When the two equations are graphed in the coordinate plane, how are they related to each other geometrically?
1 point
1
Question 6
6.
Match each graph to a situation.
D.
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2.
C.
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4.
A.
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1.
B.
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3.
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1
Question 7
7.
A mountain road is 5 miles long and gains elevation at a constant rate. After 2 miles, the elevation is 5500 feet above sea level. After 4 miles, the elevation is 6200 feet above sea level.
Find the elevation of the road at the point where the road begins.
1 point
1
Question 8
8.
A mountain road is 5 miles long and gains elevation at a constant rate. After 2 miles, the elevation is 5500 feet above sea level. After 4 miles, the elevation is 6200 feet above sea level.
Describe where you would see the point in part (a) on a graph where y represents the elevation in feet and x represents the distance along the road in miles.
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