Algebra Test

A bag contains n nickels and q quarters worth a total of $40.

Which equation models this information?

• n+q=40

• 5n+25q=40

• 0.5n+0.25q=40

• 0.05n+0.25q=40

On what interval of x-values is the function g(x) increasing?

• (-3,6)

• (0,3)

• (1,10)

• (6,10)

Which of these points lies on the graph of the equation x-12=y?

• (4,8)

• (3,15)

• (-4,-8)

• (-2,-14)

Juan and Nia are each solving the equation 13x-42=18-7x. Juan's first step was to rewrite the equations as 20x-42=18 while Nia's first step was to rewrite the equation as 13x=60-7x. Who is correctly applying the addition property of equality in the first step of his work?

• Only Juan

• Only Nia

• Both Nia and Juan

• Neither Nia and Juan

Solve for x if :
f(x) = 35
f(x) = 2x + 10

• 35

• 12.5

• 2

• 10.5

Solve for f(10):
f(10) = -x - 5

• 15

• -5

• -15

• 50

What is the value of x in:
f(3) = 2x + 1

• 3

• 2

• 1

• 0

What is the value of x in:
f(4) = 3x - 1

• 11

• 4

• -1

• 0

Solve for f(5):
f(5) = -x + 4

• 9 

• 1

• -1

• -9

What subject is this?

• Aljebra

• Algabra

• Algebra

• Aljebrajimavich