Functions Worksheet - Big Ideas Math Prealgebra: A Florida Standards Curriculum Teaching Edition Page 47
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478. The tables show the sales (in millions
Year
1
2
3
4
5
of dollars) for two companies over
Sales
2
4
6
8
10
a 5-year period. Examine the data
in the tables.
(MAFS.8.F.1.3)
Year
1
2
3
4
5
Part A Does the fi rst table show a
Sales
1
1
2
3
5
linear function? Explain
your reasoning.
Part B Does the second table show a linear function? Explain your reasoning.
1
9. The equations y = −x + 4 and y =
x − 8 form a system of linear equations.
—
2
The table below shows the y-value for each equation at six different values of x.
(MAFS.8.EE.3.8a)
x
0
2
4
6
8
10
y = −x + 4
−2
−4
−6
4
2
0
1
y =
x − 8
−8
−7
−6
−5
−4
−3
—
2
What can you conclude from the table?
A. The system has one solution, when x = 0.
B. The system has one solution, when x = 4.
C. The system has one solution, when x = 8.
D. The system has no solution.
10. In the diagram below, Triangle ABC is a dilation of Triangle DEF . What is the
value of x ?
(MAFS.8.G.1.4)
A
D
x cm
9 cm
6 cm
F
5 cm
E
C
10 cm
B
Standards Assessment
285
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