20%
A rectangular doubles tennis court is (8x – 2) ft long and (4x – 4) ft wide. Which expression represents the perimeter of the tennis court?
a) (12x - 6) ft
b) (12x + 6) ft
c) (24x - 12) ft
d) (24x + 12) ft
c) (24x - 12) ft
Which point lies on the line represented by y = 3x + 5?
a) (-2, -1)
b) (-10, -5)
c) (3, 5)
d) (20, 5)
a) (-2, -1)
What are the inequality symbols?
less than, less than or equal to, greater than, greater than or equal to
Which formula distance or midpoint involves square root?
Distance
Multiply
x(x - 2)
x2 - 2x
Mary paints two walls in her house. The area of the first wall is represented by the expression 6x2 + 2x – 8. The area of the second wall is represented by the expression 10x2 – x + 14. Which expression represents the total area that Mary paints?
a) 16x2 + 3x + 22
b) 16x2 + x + 6
c) 16x2 - x + 6
d) 16x2 - 3x + 6
b) 16x2 + x + 6
Show #13
a
When do you FLIP an inequality symbol?
When you multiply or divide by a negative :)
Show #15
a
Which expression is equivalent to (-3x4)(2x-2) ?
a) -6x2
b) 9
c) 3x2
d) 9x2
a) -6x2
Show #1
a) 15x + 7
b) 19x+ 5
c) 12x2 - 2x - 2
d) 24x2 - 4x - 4
a) 15x + 7
What is the slope of a line that is perpendicular to the graph of y = 5 + 3/5 x?
-5/3
What is the solution of the equation 3(x − 5) = −x + 7?
MUST SIMPLIFY IF POSSIBLE
11/2
What is the distance between two points located at (1, 6)and (4 , -6) on a coordinate grid?
square root of 153
Which expression is equivalent to (x - 2)(x - 6)?
a) x2+8x+12
b) x2+8x-12
c) x2-8x+12
d) x2-8x-12
c) x2-8x+12
Which expression is equivalent to (5t2+4t+18) + (200-5t+7t2)?
a) -2t2 - 9t +218
b) 10t2 + 11t + 218
c) 12t2 - t + 218
d) 12t2 + 9t + 218
c) 12t2 - t + 218
Show #17
b) perpendicular to each other
What is the value of x in the equation below?
3x - 4(2x - 5) = 5
3
A function is shown below
g(x) = -2x2 + 3x -9
What is the value of g(-3)?
a) 18
b) 0
c) -36
d) -42
c) -36
Which expression is equivalent to (2x - 1)(-3x + 4)?
a) -x + 3
b) -6x2 - 4
c) -6x2 +5x - 4
d) -6x2 +11x - 4
d) -6x2 +11x - 4
Which expression is equivalent to (–3x2 – 6x + 5) – (4x2 – 10x + 12)?
a) –7x2 – 16x + 17
b) –7x2 + 4x - 7
c) –x2 – 16x + 17
d) –x2 + 4x - 7
b) –7x2 + 4x - 7
Show #12
c
Which of the following is equivalent to
10 - 4x < 50?
x > -10
A map is placed on a coordinate grid. On the map, city 1 is located at the point (35, 78), and city 2 is located at the point (47, 122). What are the coordinates of a city located halfway between city 1 and city 2?
a) (82, 200)
b) (41, 100)
c) (12, 44)
d) (6,22)
b) (41, 100)