Linear and Quadratic Regression
9th Grade
•9 Qs
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Linear and Quadratic Regression
Quiz
•
Mathematics
•
9th Grade
•
Medium
+6
Standards-aligned
Used 361+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The table shows the relation between the number of hours worked babysitting and the total price for the services. Using the data shown above, which equation could be used to predict the total price for babysitting services?
c = h +39
c = 11h - 1
c = 8h + 11
c = 10h + 3
Tags
CCSS.8.EE.B.5
CCSS.8.F.A.3
CCSS.8.F.B.4
CCSS.8.SP.A.3
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Given the set of data, estimate what the value of y will be when x = 14. Round your answer to the nearest tenth.
340
200.5
343.4
433.2
Tags
CCSS.8.F.A.3
CCSS.8.F.B.4
CCSS.8.SP.A.1
CCSS.8.SP.A.2
CCSS.8.SP.A.3
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determine the curve of best fit.
y = -2.7x + 7.4
y = 0.95x2 - 2.08x - 0.75
y = -.05x - 3.26
y = 0.95x2 + 2.08x + 0.75
Tags
TEKS.MATH.A.8B
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The data in the table represents a linear relationship between altitude and temperature.
y = -0.14x + 74.88
y = -0.14x - 74.88
y = 0.14x + 74.88
y = -2.35x2 - 0.09x + 73.79
Tags
CCSS.8.F.A.2
CCSS.8.F.A.3
CCSS.8.F.B.4
CCSS.8.SP.A.3
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which equation fits the pattern of the following sets of ordered pairs?
y = -1/2 x + 3
y = -1/2 x - 3
y = x + 3
y = x - 3
Tags
CCSS.8.F.A.2
CCSS.8.F.A.3
CCSS.8.F.B.4
CCSS.8.SP.A.3
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The table below gives the number of hours spent studying for a math exam (x) and the exam grade (y). Using a line of best fit, predict the exam grade of a student who studied 5 hours.
100
93
96
87
Tags
CCSS.8.F.B.4
CCSS.8.SP.A.1
CCSS.8.SP.A.2
CCSS.8.SP.A.3
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
This set of ordered pairs shows a relationship between x and y. Using the line of best fit, which is closest to the output when the input is 3?
10.72
9.5
2.5
13
Tags
CCSS.HSF-LE.A.1B
8.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The table below shows the 2014 postage rates for mailing first-class envelopes. Using the line of best fit, which value represents the postage rate of a 14 ounce envelope?
$3.50
$3.71
$2.73
$2.94
Tags
CCSS.8.F.B.4
CCSS.8.SP.A.1
CCSS.8.SP.A.2
CCSS.8.SP.A.3
9.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the data plotted on the scatterplot, which equation most closely describes a line of best fit for the data?
y = 2x - 4
y = 2x + 5
y = x + 6
y + 3x - 4
Tags
CCSS.8.SP.A.1
CCSS.8.SP.A.2
CCSS.8.SP.A.3
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