Review: Slope from a Graph. Find the Slope of Each Graph Below

Review: Slope from a graph. Find the slope of each graph below:

1.  / 2.  / 3. 

Explore – Slope from a Table

Think about it! Anthony is saving up for a pony. Below is a table of how much money he has each week.
X (weeks) / Y ($ saved)
0 / 100
3 / 190
4 / 220
6 / 280
/ 1.  Is Anthony saving the same amount each week?
2.  What type of function is this?
Linear Quadratic Exponential
3.  Anthony is saving $ ______per ______.
4.  What did #2 find?
Slope Linear Coefficient Constant
Slope Formula: m= ΔyΔx= y2-y1x2-x1

We Do – Calculating Slope from points and tables

1. Determine the slope of a line that passes through the points (5, 3) and (-2,-3). / 2. Find the slope of the line that passes through the points (2, -1) and ( 6, 4).
3. Calculate the slope from the table below.
X / Y
-4 / 5
0 / 2
4 / -1
8 / -4
/ 4. Calculate the slope of the 3 CPC.
X / Y
-1 / 4
2 / -5
4 / -11

You do:

Problem 1.
Left is a graph of the value of Coach G.’s van over time. When she purchased the van, it was worth $16,000. After 5 years, it was worth $______. / 2. Using those two points, (0, 16000) & (5, 8000), find the slope using the slope formula or a table.
3. The van’s value increased/ decreased by ______dollars per ______. / 4. Does it make more sense to leave our answer as a fraction or change it to a decimal?
5. Calculate the slope from the table below.
X (days) / Y (miles run)
3 / 7
4 / 9
5 / 11
The amount of ______increases by ______per ______. / 6. Determine the slope of a line that passes through the points (-2,-3) and (2,-3). / 7. Find the slope from the 3cpc of values below
X / Y
3 / -6
5 / 2
7 / 10
9 / 18
11 / 26
8. Below is a graph of the price of coffee. Find and interpret the slope of the graph.
The ______increases/decreases by ______per ______. / 9. Simplify:
4-2x+4y+4x+2(x-4y) / 10. Find the rate of change from the table below.
X / Y
-2 / -6
0 / -2
1 / 0
2 / 2
11. Find the slope of the line that contains the point (9,0) and ( 7, 14). / 12. Find the slope of the table:
X (days) / Y (stamps)
3 / 41
6 / 77
7 / 89
10 / 125
Yvette gets ______per ______.