WorksheetsFinal Exam -
Total questions: 9
Worksheet time: 42mins
Name
Class
Date
1.
Solve the system of equations using substitution:
-4x + 4y = 8
y = -2x - 10
-4x + 4y = 8
y = -2x - 10
a)
(-4, -2)
b)
(12, -34)
c)
(4, -18)
d)
(-2, -6)
2.
Which point below is NOT part of the solution set?
a)
(0, 0)
b)
(-10, -10)
c)
(-1, 5)
d)
(5, 20)
3.
Is the relation a function? Why.
a)
Yes, because the x-value 11 has two y-values pair with it.
b)
Yes, because each x-value has only one y-value paired with it.
c)
No, because the x-value 11 has two y-values pair with it.
d)
No, because each x-value has only one y-value paired with it.
4.
a)
Function
b)
Not a Function
5.
How would you write y=2x-3 in function notation?
a)
y=2x-3
b)
f(x)=2x-3
c)
f=2x-3
6.
What is the domain?
a)
(-3 , 3)
b)
[-4, 5]
c)
(-4, 5)
d)
(-3, 3]
7.
This system has _____ solutions
a)
No
b)
1
c)
2
d)
Infinitely many
8.
On Monday Joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. On Tuesday he bought 5 cups of coffee and 10 doughnuts for a total of $14.25. Which equations could be used to determine the cost of the coffee?
a)
10c + 5d = 14.25
5c + 10d = 16.50
5c + 10d = 16.50
b)
10c + 5d = 16.50
5c + 10d = 14.25
5c + 10d = 14.25
c)
c + d = 10
5c + 10d = 16.50
5c + 10d = 16.50
d)
c + d = 5
5c + 10d = 16.50
5c + 10d = 16.50
9.
Solve this system of equations by graphing.
y = 1/2x + 2
y = -3x + 9
y = 1/2x + 2
y = -3x + 9
a)
(2,3)
b)
(-2,-3)
c)
(3, 2)
d)
(-3,2)
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