Midterm Warm Up 2

What are the solutions to the equation 
 $2x^2+3x-20=0$  
(graph, quadratic formula, or substitute answers in)

• 2 and -5

• 4 and -5/2

• - 4 and 5/2

• 5 and -2

Does this represent a function?

• Yes

• No

Tags

CCSS.8.F.A.1

What is the solution to the equation?

​4x − 7 − 9x = 13 + 5x

• no solution

• x = 2

• x = 1/2

• x = -2

Simplify  $\sqrt{12}$  

•  $2\sqrt{6}$  

•  $2\sqrt{3}$  

•  $4\sqrt{6}$  

•  $4\sqrt{3}$  

Which of the following is a RATIONAL NUMBER?

• $\sqrt{8}$

• $\pi$

• $\sqrt{10}$

• $\overline{.79}$

In order to find the product of 2x−3 and x + 4, you must

• MULTIPLY using box method

• ADD like terms

• MULTIPLY only like terms

• SUBTRACT like terms

Based on the slope, which function can NOT model the graph?

• y = 1.7x + 21

• y = 1.7x - 40

• y = -0.167x - 40

• y = 0.167x + 33

Which equation models the scenario:

Becky has 30 and buys 5 more each week

• y = 5x + 30

• y = 30x + 5

• y = 35x

• y = 5x + 35

Which of the functions graphed has a MAXIMUM?

• 
• 
• 
• 

Simplify the expression by combining like terms.

 $\left(7x^2+6x-3\right)-\left(5x^2-2x\right)$  

•  $2x^2+4x-3$  

•  $2x^2+8x-3$  

•  $12x^2+4x-3$  

•  $6x\ -\ 3$