Line and Curve
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Caroline weighs her new puppy every month to see how much it has grown. If age is a and weight is W, which of these is the correct equation of best fit?
W = 3.6 + 8.9
W = 3.6a + 8.9
a = 8.9W + 3.6
W = 8.9a + 3.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The height a toy rocket is above the ground is recorded for several times after it was launched. What is the coefficient of x2 in the curve of best fit equation?
-5.43
5.43
54.81
-2.43
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shows how much money Jon has in his bank account each year. Is this data better represented by a line or a curve?
Line
Curve
Tags
CCSS.8.F.A.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shows how much money Jon has in his bank account each year. Use the equation of best fit to estimate how much was in his account 18 years after he opened it.
-$2,560
$1,315
$1,608
$2,723
Tags
CCSS.HSF.LE.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shows the height and shoe sizes of several students. Let x = height and create a line of best fit. What is the y-intercept of that line?
1.17
0.45
55.83
-19.87
Tags
CCSS.HSF.LE.B.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shows the height and shoe sizes of several students. Use the line of best fit to predict a student's height if they wear a size 7 shoe.
35 inches
59 inches
17 inches
63 inches
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
David is training for a race and records his fastest time after each week of training. Is this data better represented by a line or a curve?
Line
Curve
Tags
CCSS.8.F.A.3
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