20 terms

Ax + By + C = 0

Standard form of a linear equation

Use C= (B/2)^2

To complete the square

D=RxT

Distance = (Rate)(Time)

y = mx + b

Slope-intercept form ( easy to graph)

y - y1 = m(x - x1)

point-slope form ( when given a point and a slope)

m = (y2 - y1)/(x2 - x1)

slope formula ( When given 2 points)

1/Time 1 + 1/ Time 2 = 1/ Total Time

Work Formula ( When given a job done by 2 different people)

Standard form of Quadratic Equation

Ax^2 + Bx + C= 0

When lines are Paralell, they have...

The same slope Example: 1/2 and 1/2 or 2 and 2, I I

When Lines are Perpendicular, like a cross...

They have reciprical, (flipped), slopes with the opposite sign, Example: -5/4, and 4/5

A function

Passes the Vertical Line test,for every x there is only one y, or parabola that smile up or frowns down, lines with slopes

Not a function

Does not pass the vertical line test, circles, parabolas, sideways

On a table, when there are more than one y value for the same x

On a table, when there are more than one y value for the same x

m=

slope

b=

y intercept

coordinate pair

(x,y)

slope is :

rise over run, change of y over change in x, (Y2 -Y1) divided by (X2-X1)

The Quadratic Formula is derived from

Completing the Square of the Standard form of a quadratic equation Ax^2 + Bx + C=0

What is a like term?

same variable and same exponent

When I multiply variables with exponents...

I add the exponents

What are the steps for completing the square?

1. make sure A term is "1", divide if neccessary

2. Move C term to right

3. Complete square on the left w (b/2)^2 and add to both sides

4. Factor the left, simplify the right

5. take the square root of both sides

6. sove for X.

2. Move C term to right

3. Complete square on the left w (b/2)^2 and add to both sides

4. Factor the left, simplify the right

5. take the square root of both sides

6. sove for X.