Math FA Preparation

Solve:

3x + 5y = 4

4x - 5y = -18

• x = -2

  y = 2

• x = -2

  y = -2

• x = 2

  y = -2

• x = 2

  y = 2

Solve:

2x + 5y = 29

x + 5y = 22

• x = 7

  y = 3

• x = -7

  y = -3

• x = 7

  y = -3

• x = -7

  y = 3

Describe the following graph.

• The graph has positive gradient and passes through x - intercept at x = 2.5

• The graph has positive gradient and passes through y - intercept at y = 2.5

• The graph has negative gradient and passes through x - intercept at x = 2.5

• The graph has negative gradient and passes through y - intercept at y = 2.5

What is the solution?

• No solution
• (0, 2)
• (0, -4)
• (3, -3)

Solve the system of equations using substitution:

y = 2x + 5

2x + 2y = 4

• (1, 7)

• (7, 1)

• (2, 9)

• (-1, 3)

A car rental company charges a flat fee of $50 plus $20 per day for renting a car. If you rent the car for 𝑥x days, the total cost can be represented by the expression:

• 50𝑥+20
  

• 20𝑥+50
  

• 20𝑥+70
  

• 70𝑥

Meg's teacher asked her to find the zero(s) of the equation below.  Meg decided to factor to find the zero(s). 
0= x²-4x +4

(x + ___) (x + ___)

• (x + -2)(x + 2)
• (x + -4)(x + 2)
• (x + -4)(x + 4)
• (x + -2)(x + -2)