[2.4] Algebra 2
*1. Given any graph of a line, be able to write and
equation for the line.
*2. Given a linear equation be able to graph it.
1. To write an equation for a
line you will want to use Y=MX+B form.
*The M will stand for the slope of your
line.
*The B will stand for the y-intercept of
the line.
Equation: Y= 1/2x + 1
Ex: Y= x-1
Try These!
A) Y= 3/2x + 1
B) Y= x-3
C) Y= 2x + 4
*2. To be able to graph a line, you must be able to identify the
pieces of Y=MX+B formula.
·
y=2x+2
o
The 2/1 is the slope
o
The 2 is the Y-intercept.
Ex. What is the equation of this graph of this line?
answer: Y= 1/3x-1/2!!
Try these!
By:RaeDawn Bohn,
Mr. Ferrante’s Algebra 2 class,
period. 3