Equation from WP
Each cookie costs $2.50. Write an equation that represents y, the total cost of x, number of cookies.
y=2.50x
Refer to "Equation from graph 100"
y=25x
Refer to Equation from Table 100
y=x+6
What is your slope-intercept form equation? (hint:lots of letters)
y=mx+b
Should we use our notes on the quiz?
YES YES PLEASE YES
Conor's lunch account has $6 in it. Then x number of dollars was added. Write an equation that represents the total balance, y, after x, number of dollars, was added.
y=6+x
Refer to Equation from graph 200
y=x-5
Refer to Equation from Table 200
y=2.5x
How do we calculate slope (m)?
Change in Y OVER change in X
("carrot tops")
More, And, Increase all mean what opeartion?
Add
y=x-10
Refer to Equation from graph 300
y=40x
Refer to Equation from Table 300
y=x-10
Describe pretty points
Points that go through the corner of the grid on a graph
What operation is happening in the following equation?
d=3.75c
multiplication between 3.75 and c
y=1.75x
Refer to Equation from graph 400
y=60x
Refer to Equation from table 400
y=6x
How do I write an ordered pair?
(x,y)
How do I find b in y=mx+b? (dont know? find it in our notes!)
After we have m, we plug x values into our equation. We add or subtract a certain amount until we reach our y. The number we added or subtracted becomes our b.
Five students are picked from each classroom to share about their experience at DMS. There are x number of students in class. What is the total number of students in class, y?
y=x -5
Refer to Equation from Graph 500
y=1/10x
Refer to Equation from Table 500
y=x-2
Each, Every, and Per all mean what operation?
Multiplication
Mr. Mahoney charges $360 for 12 ice-hockey lessons. He charges the same amount for each lesson. How much does he charge for 1 lesson? (this amount is like our slope m)
$30 a lesson