Distance Learning Quiz #7

What rules must you follow when taking this Quiz?

• Do not copy from or get information from another student.

• Do not use the internet as a resource.

• You may use your notebook that includes examples from our Zoom classes and homework problems.

• All of the above.

Juan graphed two lines in order to find the solution to a given system of equations.

What is the solution?

• (-3,-8)

• (-8,-3)

• (3,-8)

• (8,3)

Solve using elimination:

3x - y = 7

2x + y = 3

• (-1,2)

• (5,4)

• (4,5)

• (2,-1)

Solve using substitution:

y= 3x -13

2x +4y =4

• (5,2)

• (4, -1)

• (-4, -1)

• (5, -2)

• (-4, 1)

Solve using equal values method:

y=5x−5

y= −4x+22

• (1, 2)

• (3, 10)

• (-1, 2)

• (-3, 10)

Solve for x:
2(3x + 4) + 2 = 4 + 3x

• 2
• -2/3
• 10
• -2

Tags

CCSS.8.EE.C.7B

Simplify:

(2 + 7 - 1) ÷ 2²

• 16

• 2

• 72.25

• 8.75

What is the domain?

• 1 ≤ y ≤ 7

• 1 ≤ x ≤ 7

• -3 ≤ y ≤ 3

• -3 ≤ x ≤ 3

Multiply:
 $\left(x-3\right)\left(x-9\right)$  

•  $x^2-12x+27$  

•  $x^2-12x-27$  

•  $x^2-6x+27$  

•  $x^2+6x-27$  

Tags

CCSS.HSA.APR.A.1

Simplify: a³b(ab)² =

• a⁵b³

• a⁶b⁴

• a²b²

• a⁹b⁶