Grade 8 DOKI and DOKII MCA Samplers
Authored by Marissa Sowada
Mathematics
8th Grade
CCSS covered
Used 3+ times
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80 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mild
A 160-pound male lifter will lift between 950 and 1,000 pounds.
A male lifter who lifts 925 pounds will weigh between 200 and 240 pounds.
There will be 0 male lifters who lift more than 950 pounds.
There will be 0 male lifters who weigh less than 120 pounds.
Answer explanation
Find 925 on the y-axis (weight).
Find the dot it will match with to find x (lift)
2.
GRAPHING QUESTION
3 mins • 1 pt
Mild
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Medium
Over time, fewer computers were sold.
One store sold fewer computers each year than in the previous year.
More computers were sold in year 1 than in year 4.
The number of computers sold over time did not change consistently.
Answer explanation
The scatterplot's correlation is in a horizontal line (no positive and no negative trends).
So, that tells us that the relationship is not changing and it consistent.
Tags
CCSS.HSF.IF.B.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Medium
$10
$15
$19
$24
Answer explanation
Draw a line of best fit.
Shows a positive trend.
Go to x = 5. Go up until you reach the line of best fit.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Medium
3
4
5
6
Answer explanation
Follow the pattern in the coordinates on the line:
(3, 14)
(4, 12)
(5, 10)
(6, 8)
(7, 6)
(8, 4)
Or write an equation for the line of best fit: y = -2x + 20
Plug in x = 8
Tags
CCSS.HSF.LE.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Spicy
(1, 0)
(1, 4)
(2, 6)
(8, 3)
Answer explanation
(1, 4), (2, 6), and (8, 3) are points that are higher on the graph. This would make the line less steep.
(1, 0) is lower on the graph forcing the line to be more steep.
Tags
CCSS.8.EE.B.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation has a graph that is parallel to the graph of y=4x−3?
y = -4x + 3
y = -1/4x - 3
y = 1/4x - 3
y = 4x + 3
Answer explanation
Parallel = Same Slope
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