Simplification
Subtract these two polynomials
(9x3-5x2+7)-(4x3-8x-9)
5x3-5x2+8x+16
Solve 3(x-5)+7=5(x+3)-41
x=9
What is the slope of a line that passes through the points (3,-5) and (-9,-1)?
-1/3
Which property is illustrated by the following equation:
x+y+z=z+x+y
The Commutative Property of Addition
Find the GCF of 25x2+5x+15
5
Simplify 8+3(2-9)2
155
What is the value of -3(5x2y7z13)0?
-3
y-3=-4(x-2)
Which subset(s) of real numbers describe the number -5?
Integers, Rationals, and Reals
Find the mean, median, and mode of the data set below:
2, 5, 4, 2, 1, 1, 2, 2, 1
mean: 2 2/9 or 2.2222...
median : 2
mode : 2
Simplify the square root of the quotient between 16 and 144.
1/3
Solve 9/x=3/2
x=6
What values must be excluded from the rational expression (35t2-15)/(t-2)
2
Independent events, because the result of the first has no influence on the result or probability of the next.
Analyze the algebraic equation y=-2x. Name 3 things you know about the graph of this equation. Also, is it a function?
This is a linear equation, in particular a direct variation. It has slop of -2 and goes through the origin. It is a function via vertical line test.
Simplify 1/x-5
x5
A perfectly square room has a tiled floor made up of 289 tiles. How many tiles are along one edge of the floor?
17 tiles.
Find the x- and y-intercepts of -12x-5y=60
x=-5, y=-12
(-5,0), (0,-12)
What are the domain and range of a function?
All the possible x values and all the possible y values that the function can have
A rectangle has an area of 60ft2. Its length is 4 times its width. What is the perimeter of this rectangle?
32ft
Simplify (2x3y4)3
8x9y12
Find the sum of 0.44-(-12)
Graph y=5x+3 on a coordinate grid.
Your graph should have a slope of 5 and a y-intercept of (0,3).
Write the inequality 21x<54+2 in words.
The product of 21 and a number is less than the sum of 54 and 2.
Draw a graph of a line with a slope of 0. Make sure your axes and intervals are labeled.