Show:
Graphing
Radicals/Trig
#s/Props/Percents
Polynomials/ Rational Expressions
Mixed Bag
100
What is the equation for slope?
y2-y1/x2-x1 or ∆y/∆x
100
What formula do you use when given a right triangle and 3 sides?
a2 + b2 = c2
100
What is the general equation for percents?
is/of = %/100
100
How do you divide terms with exponents? (eg. x^m/x^n)
Divide coefficients and subtract exponents.
100
Name the property: ac = ca
Commutative property of multiplication
200
What is the general equation of a line?
y=mx+b
200
When given a right triangle with an angle measure and the hypotenuse, how do you find the adjacent side?
cos < = adj/hyp
200
What is the formula for percent increase or decrease?
|old-new|/old or difference/old x 100
200
How do you simplify rational expressions (algebraic fractions)?
factor and cancel
200
What is the formula for the area of a circle?
A = πr^2
300
What is the general equation of a line parallel to the y-axis?
x=#
300
Given a right triangle with the opposite and adjacent sides, how do you find the angle?
tan-1(opposite/adjacent)
300
What is the formula for relative error?
|measured-actual| /actual or difference/actual
300
How do you divide 2 algebraic fractions?
keep, change, flip; then factor and cancel
300
What is the difference between univariate data and bivariate data?
Univariate data involves a single variable and bivariate data has two variables with a cause-effect relationship.
400
What is the general equation of a quadratic (parabola)?
y=ax2+bx+c
400
Simplify: 3√50
15√2
400
What is the formula for exponential growth or decay?
y = A(1+-r)^x
400
How do you multiply numbers in scientific notation?
Multiply the whole numbers, keep the base 10 and add the exponents. Make sure the answer is in correct scientific notation.
400
How do you find the values that make a fraction undefined?
Set the denominator = 0 and solve.
500
What is the equation for the axis of symmetry of a parabola?
x=-b/2a
500
Add: 4√12 + 7√27
29√3
500
What is the difference between natural numbers and whole numbers?
Natural numbers are counting numbers that begin at 1 and whole numbers start at 0.
500
Give 1 of 2 ways to eliminate fractions in rational equations.
1. with fraction=fraction, cross multiply 2. multiply each term by the LCD
500
How do you find the equation for the line of best fit for a scatter plot?
Stat, Calc, 4:Lin Reg (ax+b)