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65 Cards in this Set
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Quadratic Formula

b + square root b squared  4ac all over 2a


Distance Formula

square root(x  x)squared + (y  y)squared


Slope (Rate of change)

Rise/Run
yy over xx 

Midpoint Formula

(x + x divided by 2, y + y divided by 2)


Anything to the Zero power

One


Compound Interest Formula

C( 1 + r/n) ^nt


Perpendicular lines have slopes that are:

Opposite or Negative Reciprocals


Discriminant b^2 – 4ac

>0 is 2 real solutions,
= 0 is 1 solution, <0 is no solution 

Exponent Law when Multiply with same bases

Keep base, add exponent


Another name for an Independent Variable

Domain or X Coordinate


What kind of line for < or > on the coordinate plane?

Dashed


What is the equation for a Linear Function

y = mx + b


What is the equation for a Parabola?

y = ax^2 + bx + c


What does the graph of an Exponential Function look like?

Curve


Parallel Lines have what kind of slope?

Same Slope


Growth (Simple Interest) Formula

y = c(1 + r)^t


Decay Formula

y = c(1  r)^t


What kind of line for < =or > =on the coordinate plane?

Solid


Radius

r = 1/2d


Direct Variation

y = kx
So x/y = x/y 

Change Percent to Decimal

Move the decimal 2 places to the left or divide by 100.


What does a quadratic graph look like and how do you know?

U or upside down U because the x is squared.


% of Change Formula

%/100 = is/of


How to change a negative exponent to a positive

Move the part with the negative exponent either from the top to the bottom or the bottom to the top of the fraction bar


Exponent Law for Dividing with the same base

Keep the base, subtract the exponents.


Exponent Law for Power to a Power

Keep the base, multiply the exponents


When solving an Inequality and have to divide or multiply by a negative number, remember to:

Switch or flip the inequality symbol


Compound Continuously Formula

A = pe^rt


Exponent Law for Power to a Power

Keep the base, multiply the exponents


Solve a System of Equations using Matrices

A^1 * B


When solving an Inequality and have to divide or multiply by a negative number, remember to:

Switch or flip the inequality symbol


Calculator Keys to Find the Line of Best Fit

Stat, Edit, Stat, Calc, #4, L1, L2, Vars, YVars, Enter Enter Enter


Compound Continuously Formula

A = pe^rt


Solve a System of Equations using Matrices

A^1 * B


Calculator Keys to Find the Line of Best Fit

Stat, Edit, Stat, Calc, #4, L1, L2, Vars, YVars, Enter Enter Enter


Predict Using the Calculator

2nd Window, Enter Value, 2nd Graph (Table)


Find the Vertex on the Calculator

2nd Calc, Max or Min, Left Bound, Right Bound, Guess


Find the Axis Of Symmetry Equation Using the Calculator

Find the Vertex then write x = x coordinate


Change Calculator Window

Change XMin, XMax, YMin, YMax


Area of a rectangle

A = lw


Perimeter of a Rectangle

P = 2(l + w) or P = 2. + 2w


Other names for solutions

Roots, Zeros, x Intercepts


Matrix Dimensions

r x c
(RBC) 

How to find the solution of an absolute value equation.

Remove bars, make equal to positive then work again equal to negative


How to tell if a graph is a function

Must pass the Vertical Line Test (vertical line cannot pass through more than once)


Volume of a Cube

V = lwh or V = s^3


How to tell if points make a function

None of the x values (domain) repeat


y = mx + b is what? What does the m and b represent?

Slope Intercept form of a line. M = slope, b = yintercept (where the line crosses the yaxis)


Standard Form of a Line for use with matrices

Ax + By = C


Independent Variable (I, D)

x or domain (x, y)


Dependent Variable (I, D)

y or range (x, y)


Which way do vertical lines go?

up and down


Which way do horizontal lines go?

left to right


Distance and Rate Formula

d = rt
distance = rate times time 

What is the solution of the graph of a system of equations?

The point of intersection of the two lines


Compound Interest Values for n
Semi Annually Quarterly Monthly 
N = 2
N = 4 N = 12 

Diameter

d = 2r


Like Terms Definition

All variables and exponents are the same


Midpoint Definition

The center of a circle or intersection of diagonals


Polynomial Definitions
Monomial Binomial Trinomial 
1 term
2 terms 3 terms 

Pythagorean Theorem

a^2 + b^2 = c^2


Absolute Value Graph

Looks like a V


To write Equations what are the 3 steps?

1. Find slope (m)
2. Use m and (x,y) from one ordered pair to plug into y = mx + b to find b 3. Use found m and b to substitute into y = mx+b 

HOY

Horizontal Line
0 Slope Y = # Equation 

VUX

Vertical Line
Undefined Slope X = # Equation 