Module 4 Flashcards

Front 1

Slope

Back 1

How steep a line is (can be negative, positive, or undefined).

y2-y1 / x2-x1

Find the slope of these points (5,6) (7,8)
8-6 / 7-5
2/2
1
slope= 1

Front 2

Slope Intercept Form

Back 2

y=mx+b

Find the equation of a line with the slope of 4 and the points (-1,-6)

Y= mx+b
-6 = 4(-1) +b
-6 = -4 +b
-2 =b
Y= 4x -2

Front 3

horizontal line

Back 3

A straight line that goes from the left to the right.
y=k
example y=8

Front 4

Point Slope Form

Back 4

y-y1 = m(x-x1)

Find the equation of a line that m=5 and has the points (5,10) (15,20)

y-y1= m(x-x1)
y-10 = 5(x- 5)
y-10 = 5x -25
5x-25+10
5x-15
y= 5x-15

Front 5

Vertical Line

Back 5

A straight line that goes up and down.
x=k
example= x=10

Front 6

Standard Form

Back 6

Ax+By=C
Find the equation of a line that has the slope of 7 and the points (3,6) (2,5).