Slope Intercept Form
What Is The Slope Intercept Form?
y=mx+b
What Is Slope?
Change in Y over Change In X
On a graph what is the Y Intercept?
Where the line runs through the Y Axis.
Bob joins a club at school. He pays $15 to join and $5 every month. Write an equation using the slope intercept form.
y=5x+15
If you spend $72 for 8 hours at a party, how much did you spend for 1 hour?
$9
What is the slope intercept form when...
Slope: 44
Y Intercept: 13
y=44x+13
How do you find Slope on a graph?
Pick 2 ordered pairs on the line and divide the difference of the second y-coordinate and the first y-coordinate by the difference of the second x-coordinate and the first x-coordinate.
How do you find the Y Intercept on a table?
If 0 isn't the X-coordinate in the ordered pair, then you plug in the 2 numbers in the ordered pair to the equation y=mx+b and solve for b.
Fred wants to train for a bike race, right now he can bike 7 miles he plans to add 1 mile each week. Right an equation using the slope intercept form.
y=1x+7
When looking at a graph, how do you know it is proportional?
The line has to be straight and it has to run through the origin.
What is the Slope Intercept Form when...
Y Intercept Form: 442+67-432
Slope: 67-432+12345
y=11980x+77
If your change in y is 34 and your change in x is 17 what is the slope simplified?
2
If an ordered pair is (0,-6) what is the Y Intercept?
-6
Chris has $8000 after buying a car. He must pay $30 each month , and he knows he will eventually be in debt. In how many months will he be in debt?
About 267 months.
If I buy an eight boxes of cereal for $64, how much did I pay for 1 box.
$8
What is the slope intercept form when
Y Intercept: A number divided by 27 + 4 = 12
Slope: A number multiplied by 9 divided by 3 = 45
y=45x+216
If your change in y is 432-321 and your change in x is 99 divided by 33 what is the slope simplified?
37
If an ordered pair is (6,7) and the slope is 32 what is the Y Intercept?
-185
George installed new internet in his house. It cost him $75 to install and $135 every 6 months for the service. Write an equation using the Slope Intercept Form.
y=135x+75
If you spend $73 on 2 shirts and 1 pair of shorts, which cost $23, how much did you pay for 1 shirt?
$25
What does the slope intercept form mean?
M: Slope
B: Y Intercept
X: The number you are multiplying the slope by
Y: The final answer
If an ordered pair is (67,88) and another one is (44, 3) what is the slope in decimal form?
3.69565217
If an ordered pair is (32, 5) and another on is (98, 2) what is the Y Intercept?
78
A machine can make 5 miles of ribbon in an hour. Find out length of the ribbon the machine will make in eight hours. Another machine can make 8 miles of ribbon in an hour. Find out length of the ribbon the machine will make in 8 hours. What is the difference in length for a 8 hour period between the two machines?
24 Miles
Explain what Direct Variation is.
A proportional relationship between two numbers. The number can be expressed by the equation Y=kx. Also known as constant of proportionality.