Vocabulary
Graphs
Equations/Inequalities
Direct Variation
Word Problems
100
What is slope?
Rise over Run
Rise is up on the Y-axis
Run is run on the X-axis
100
WHAT IS THE SLOPE?
3
100
WHAT IS THE FORMULA FOR STANDARD FORM?
Ax + By = C
100
What is another name for direct variations?
Proportions
100
Jasmin goes shopping at the mall. She buys 5 tops and 9 bottoms. The total amount Jasmin spent was $187 dollars. Write an equation to represent the total amount Jasmin spent.
5x+9y=187
200
What is Domain?
All the X values for a line or inequality
200
WHAT IS THE Y-INTERCEPT?
-3
200
Put in Slope Intercept Form
x + 5y – 10 = 2x
y=1/5x+2
200
The value of y varies directly with the value of x.
If y = 35 when x = 5 what is the value of y when x = 9?
63
200
Jenny is making 3 pans of rice and 4 pans of beans for a cookout. In total Jenny is making 7 pans of sides all together. Write an equation to represent the number of sides Jenny is making.
3x+4y=7
300
What is another name for zero?
X-intercept
300
WRITE AN INEQUALITY OF THE LINE IN THIS GRAPH?
Y>2X-3
300
Solve this inequality
−6 > 5n + 5 + 4
n<-3
300
The value of y varies directly with the value of x.
If y = 3 when x = 1/2 what is the value of x when y = 12?
2
300
5b+22n > 470
400
When a word problem says: "directly varies to"
What method will you use?
Tic-Tac-Toe method
Butterfly method
400
WRITE THE INEQUALITY OF THIS LINE
Y> -3
400
Put in Slope Intercept Form
-2x - y = -3
y= -x+3
400
A car gets 32 miles per gallon. The number of miles m traveled is directly related to the number of gallons g of gasoline used. Suppose the price of gasoline is $3.85 per gallon. How much will it cost to buy gasoline for a 240 mile trip?
$28.88
400
D
500
Which inequality will go with which?
Less Than >
Greater Than or equal To <
Less Than or Equal To >
Greater Than <
Less Than <
Greater Than or equal To >
Less Than or Equal To <
Greater Than >
500
WHAT IS THE DOMAIN AND RANGE OF THIS GRAPH?
500
What is the equation in slope intercept form of the line that passes through the point (3, -5) and is parallel to the line represented by y = 3x - 4?
y=3x-14
500
The amount of paint required, y, varies directly with the amount of surface area to be painted, x. If 5 gallons of paint are required for every 1,200 square feet of surface area to be painted. How many square feet of surface can be painted with 2 gallons of paint?
480
500
C