Unit 9 Retake

Solve the system below: y = 4x - 6 y = 5(x - 3) What is the y-value of the solution?

Mathematical Equivalence

ON

Which linear system has the solution x = -2 and y = 6?

• x + 3y = 16

  4x + 4y = 16

• x + 3y = 17

  2x + y = 15

• x + 2y = -2

  2x + 4y =-4

• 2x + y = -2

  x + y = 16

How many solutions are there to this system of equations? y = x + 3 2x - 2y = -18

• No solution

• One solution

• Two Solutions

• Infinitely Many Solutions

What is the value of x for the solution to this system of equations? y = -x + 2 7x + 4y = -1

• -5

• -3

• 3

• 5

What is the solution to the system of linear equations below? x + y = 5 x - y = 3

• (8,-3)

• (5,2)

• (6,-1)

• (4,1)

Mathematical Equivalence

ON

Kayla correctly solved a linear equation and the last line of her work was: 10=13 Which statement best describes the solution to the equation Kayla was solving?

• a. The only solution is 10

• b. The only solution is 13

• c. The solutions are both 10 and 13

• d. The equation has infinite solutions

• e. The equation has no solution

William sold half of his comic books and then got 16 more for a total of 36 comic books. How many did William begin with?

Which equation matches the graph shown below?

• a. 2x + 4y = 8

• b. x + y = 4

• c. 8x - 4y = 16

• d. 8x + 4y = 16

Select the graph of the following linear equation: 3x - 2y = 8

• a

• b

• c

• d