Different Ways to Find Slope
How to find slope on a graph
Rise/run
(-3,8) pick two ordered pairs and solve.
(-2,10)
(-1,12)
(0,14)
(-3,8)(-2,10):3
(-2,10)(-1,12):2
(-1,12)(0,14):2
(-3,8)(-1,12):2
(0,14)(-1,12):2
(-3,8)(0,14):2
y = 1/2x - 4
m = 1/2
how do you read a graph to determine the slope
from left to right
Nick is going bowling and he pays $5 to rent his shoes and $2 per hour to bowl. What is the slope?
m=2
How to find slope in an equation
y=mx+b → m is the slope
pick two, solve and find the slope
(1,3)
(2,5)
(3,7)
(4,9)
m=2
y = -2/3x + 5
m = -2/3
What type of slope goes up from left to right
positive slope
Sarah is buying coffee at $5 per bag. What is the slope?
m=5
how to find slope from a word problem
find the value that causes changes (whatever is being multiplied by x)
pick two ordered pairs and solve.
(-1,6)
(0,4)
(1,2)
(2,0)
m= -2
y = x
m=1
What type of slope goes down from left to right?
negative slope
Michael rents a bike for $10 and has to pay $3 every hour he has the bike. What is the slope?
m=3
how do you find slope from a table
pick 2 points and plug it into the slope formula
pick two ordered pairs and solve.
(0,-5)
(1,-2)
(2,1)
(3,4)
m= 3
y = -1/4x - 3
m = -1/4
What is the slope of a horizontal line?
zero
A taxi company charges $4 per mile. What is the slope?
m = 4
what is the slope formula
y2 - y1/ x2 - x1
pick two ordered pairs and solve.
(-2,7)
(0,3)
(2,-1)
(4,-5)
m=-2
y = 2
m=0
What is the slope of a vertical line?
UNDEFINED
Jacob is in a baseball card club. He started with 25 cards and then gets 6 new cards a week. What is the slope?
m = 6