Quarter 3 Review Algebra

Quarter 3 Review

Multiple Choice

There are 200 teams in a ping pong tournament. In each round HALF the teams are eliminated. Which function can be used to find the number of players remaining in the tournament at the end of x rounds.

• 200 - x
• 200 + (0.5)^x
• 200(0.5)^x

• 200 (1.5)^x

Multiple Choice

Lesly 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)

Multiple Choice

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

Multiple Choice

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Systems of Equations

Get each equation into y = mx + b

Plug into DESMOS

TADA!! Your solution is where they intersect <3

Multiple Choice

Solve using DESMOS
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

Multiple Choice

Solve for y, then type both into DESMOS!
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Multiple Choice

(2x + 8)(5x + 1)

• 7x² + 2x + 9
• 10x² + 42x + 8
• 7x² + 42x + 8
• 10x² + 40x + 8

To find the area of a square or rectangle…..

Length * width

Multiple Choice

what is the area of a square table with a side length of (x-3)

• $$x^2-6x+9$$

• $$x^2-9$$

• $$x^2-3x+9$$

• $$x^2-6x-9$$

To find the length and the width given the area…

FACTOR

Multiple Select

If the area of a rectangle can be represented by $$x^2-5x-14$$ what is the length and width?

• (x+2)

• (x-2)

• (x-7)

• (x+7)

• (x-5)

Multiple Choice

Which of the expressions below is $$\left(12x^3y^2+36xy^3+48y^3\right)$$

• $$12y^2(x^3-3xy+4y)$$

• $$12y^2(x^3-3xy-4y)$$

• $$12y^2(x^3+3xy+4y)$$

• $$12y^2(x^3+3xy-4y)$$