Coach Boren's Math

________ is where a line crosses the x-axis.

x- intercept

What is an equation for a vertical line?

x = a number

What is the ordered pair for the x- intercept?

(x,o)

What is an equation for horizontal line?

y = a number

y- intercept is where a line crosses the ________.

x- axis

What is the ordered pair for the y- intercept?

(y,o)

Slope is identified as:
______ over run
______ in y over _____ in x
______ change over ___ change

- rise
- change; change
- vertical; horizontal

Positive or negative slope when rising from left to right?

- positive

Posotive or negative slope when it falls from left to right?

- Negative

What lines have no slope (undifined)?

- Vertical

What slope do horizontal lines have?

- Zero

A slope of 0 / a number represnts a _________ line.

- horizontal

What is slope intercept form?
Example with numbers.

y= mx + b
y= 4x + 1

How do you get slope intercept form?

- buy solving any equation for y

What form is this?
y-y sub 1=m(x-x sub 1)

- Point Slope Form

What form is this?
Ax + By = C
Write this with numbers

- Standard
6x + 12y = 2

(y+2)=5(x-1)
What is the slope ?
What point does it pass through?

5
(1,-2)

In Standard Form:
A is always w/ __
B is always w/ __

x
y