Quizizz - Math Rewind

kx - 3y = 4

4x- 5y = 7

In the system of equations above, k is a constant and x and y are variables. For what value of k will the system of equations have no solution?

https://www.desmos.com/testing/cb-digital-sat/graphing

• 12/5

• 16/7

• -16/7

• -12/5

Tags

CCSS.8.EE.C.8B

https://www.desmos.com/testing/cb-digital-sat/graphing

• A

• B

• C

• D

https://www.desmos.com/testing/cb-digital-sat/graphing

• A

• B

• C

• D

Tags

CCSS.HSF-IF.C.7A

https://www.desmos.com/testing/cb-digital-sat/graphing

• A

• B

• C

• D

Tags

CCSS.HSF-IF.C.7A

• The metal ball's minimum height was 3 inches above the ground.

• The metal ball's minimum height was 7 inches above the ground.

• The metal ball's height was 3 inches above the ground when it started moving.

• The metal ball's height was 7 inches above the ground when it started moving.

2x - 3y = -14

3x - 2y = -6

If (x,y) is a solution to the system of equations above, what is the value of x − y ?

https://www.desmos.com/testing/cb-digital-sat/graphing

• -20

• -8

• -4

• 8

Tags

CCSS.HSA.REI.C.9

5x = 15

-4x + y = -2

If (x,y) is a solution to the system of equations above, what is the value of x + y ?

https://www.desmos.com/testing/cb-digital-sat/graphing

• -17

• -13

• 13

• 17

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = 4x + 1

4y = 15x - 8

At how many points do the graphs of the given equations intersect in the xy-plane?

https://www.desmos.com/testing/cb-digital-sat/graphing

• zero

• exactly one

• exactly two

• infinitely many

Tags

CCSS.8.EE.C.8B

• zero

• exactly one

• exactly two

• infinitely many

A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck's revenue from selling a total of 209 salads and drinks in one day was $836.50. How many salads were sold that day.

Salads(X) and drinks(Y)

https://www.desmos.com/testing/cb-digital-sat/graphing

• 77

• 93

• 99

• 105

Tags

CCSS.8.EE.C.8C