Solve Equations and Inequalities Review

Find the y-coordinate to the solution of the system of equations. 4x + 6y = 6 -4x + 2y = -30

• y=-1

• y=6

• y=4

• y=-3

Which ordered pair is a solution of the inequality?

y ≥ 4x – 5

• (3, 4)

• (3, 0)

• (2, 1)

• (1, 1)

What is the solution to this system of equations?

• (4, -1)

• (-1, 4)

• (-4, 1)

• (-4, -1)

Which point is a solution?

• (3,2)

• (-4,-5)

• (5,4)

• (-2,3)

Which point is not a solution?

• (1, 3)

• (-1, 2)

• (3, -2)

• (5, 0)

Dennis mowed his next door neighbor’s lawn for a handful of dimes and nickels, 80 coins in all. Upon completing the job he counted out the coins and it came to $6.60. Which system of equations could be used to find the exact number of dimes and nickels?

• d + n = 6.60

  .10d + .05n = 80

• d + n = 80

  d + n = 6.60

• d + n = 80

  .10d + .05n = 6.60

• d + n = 80

  .05d + .10n = 6.60

What is the solution?

• 1

• (-1,-1)

• (1, 2)

• (1, -1)

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

• intersecting lines

• parallel lines

• skew lines

• intersecting lines

Solve for x:
8x - 10 = -34

• 4

• 3

• -3

• -24

What is the solution to this inequality?

• x > −18

• x > 9

• x > 21

• x > −42