What does m and b represent in the equation y=mx+b
m=slope
b= y-intercept
100
Does your group enjoy making graphs?
YESS!
100
What are our names?
Ivy and Rachel
200
Find the slope of the line that passes through the points (0,6) and (4,-2)?
(y2-y1)/(x2-x1)= rise/run
(-2-6)/(4-0)
= -8/4
=-2
200
Find the equation in the form y=mx+b or y=mx for the line
Going through the points (2,1),(4,2),(6,3) and graph it.
y=1/2x+0
200
Graph and find the slope of y=3 and x=3
y=3 is a horizontal line and the slope is 0
x=3 is a vertical line and the slope is undefined!
200
What is one of Mrs.Manzanares favorite things?!?!
(Besides you guys of course)
Butterflies!
300
identify the parallel lines:
y+4=x-3
2y=2x+8
3y-1=3x+2
(1/6)y=2x-3
y+4=x-3 = y=x-7
2y=2x+8 = y=x+4
3y-1=3x+2 = y=x+1
parallel lines have the same slope so that means they have the same m.
300
What is the equation of the line that passes through the points (2,4) and (4,5)
to find m:
(5-4)/(4-2)=1/2=m
then plug in to find b:
4=1/2(2)+b
= 4=1=b
= 4-1=b
=3=b
so, y=(1/2)x+3
300
Graph the equation y=-3+2
going through the points (-1,5),(0,2)(1,-1),(2,-4)
300
What did we teach you guys the first time we came to your class?
reviewed exponents and taught single variable equations
400
Jose rode his bike for 8 hours. During his ride he recorded his distance and time.
Hours: 1 3 4 6 7 8
Miles: 10 34 40 65 77 90
What are the rates of change?
The first two hours: (34-10)/(3-1) = 24/2 =12
The next hour: (40-34)/(4-3)=6/1=6
The next two hours: (65-40)/(6-4)= 25/2= 12.5
The following hour: (77-65)/(7-6)= 12/1=12
The last hour: (90-77)/(8-7)=13/1=13
400
A pool pass cost $50.00 and $2.00 is deducted from it each time you go swimming. Write an equation in slope-intercept form to represent this situation.
y=-2x+50
400
graph a line with the slope 3 that passes through the point
(-2,-2)
it will go through the points ( -2,-2),(-1,1),(0,4) to get the line y=3x+4.
400
what did we teach for our second lesson with you guys?
The chocolate lesson!!
We went over tables, data, and two variable equations!