Algebra I Midterm Exam

Which of the following best describes the expression 4 times a number increased by 7?

• (x/4) + 7
• 4x - 7
• 4(x + 7)
• 4x + 7

Evaluate the expression:

5a + b for a= 6 and b= 3

• 33

• 20

• 45

• 59

Simplify the Expression: -4(x + 6) + 2(x - 2)

• 2x + 28
• 6x - 20
• -2x - 28
• 6x - 28

Solve for x:
8x - 10 = -34

• 4
• 3
• -3
• -24

Solve for x

2x + 3(5x - 7) = 47

• 1

• 2

• 3

• 4

Which equation represents the graph?

• y = 3x + 15
• y = 1/5 x + 15
• y = -1/5 x + 3
• y = 15x + 3

What is the slope of the linear function 
graphed?

• 1.5
• 0
• 2
• -3

What is the y-intercept of the graph?

• 3
• -3
• 2
• -2

Solve the system of equations by substitution

2x − 3y = −1

y = x − 1

• (-2,-3)

• (0,-1)

• (3,4)

• (4,3)

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines