Scientific Notation
450,000
What is the definition of a rational number?
any number that can be written as a ratio
x/6 - 2 = 3
x = 30
What happens to (x, y) after a reflection over the x-axis?
(x, -y)
Simplify a2 x a3 x a
a6
(4.5 x 105)(2 x 103)
9 x 108
What is the definition of a function?
A relation in which every input has exactly one output
Is the given variable a solution to the equation?
3x-1=11; x=4
Yes
What happens to (x, y) after a dilation with a scale factor of 2?
(2x, 2y)
x3/x
x2
(8 x 106) / (4 x 103)
2 x 103
Slope-Intercept Form
y = mx + b
10+3(x+2)=31
x=5
What happens to (x, y) after a rotation 90 degrees clockwise?
(y, -x)
(4x3y3)3
64x9y9
(5.4 x 108) + (8 x 106)
5.48 x 108
Formula for volume of a cone
V = 1/3 x pi x r2 x h
A gym membership costs $15 per month plus $10 per class. If Jill spent $75 in one month, how many classes did she attend? Write an equation and solve.
6 classes; 75 = 10x + 15
What happens to (x, y) after a translation right 4 units?
(x+4, y)
Write without a negative exponent:
n3m-4
n3/m4
(1 x 105) - (8 x 103)
9.2 x 104
What formula do you use to to find the slope of a table?
y2-y1 / x2-x1
11-2x=5(x-5)+15
x=3
What happens to (-5, 3) after a rotation 270 degrees clockwise?
(-3, -5)
Simplify xy7/x3y4
y3/x2