Slope
y-intercept
Percent of Change
WOE
Equations
100
What is the slope of a line from this equation?
y=-3x+2
-3
100
What is the y=intercept of this line?
y=3x-1
-1
100
How do we know it's a percent of change proportion?
It says increase or decrease?
100
When do we use WOE?
When we're comparing 2 things
100
4b+3=11
b=2
200
What is the slope of a line from this equation
y=7/(5)x-2
7/(5)
200
What is the y-intercept of this line?
y=1/(2)x+2
2
200
Ms. Ash purchased a DVD player for $50. Two weeks later, the sale price of the DVD player was $45. Find the percent decrease in the cost of the DVD player.
*set up a proportion*
D/(OG)=%/(100)
10% decrease
200
Walmart is 28 miles away from your house. 1 mile = 4 meters. How many meters apart is Walmart and your house?
7 meters
200
1.4+5m=2.5
m=0.22
300
The formula for slope is (2 answers)
y2-y1/(x2-x1)=rise/run
300
What is the y-intercept of this line?
0
300
Nadia went shopping for a new watch. She found a watch that was originally priced at $50 on sale for $40. By what percent had the watch been marked down?
20% decrease
300
Ms. Cormier want to make cookies for the teachers. Her recipe requires 3 cups of flour for 15 cookies. She needs to make 70 cookies, how many cups of flour will she need?
14 cups of flour
300
x=2
400
What is the slope a line from this equation
y=x+3
1
400
What does y-intercept mean?
Starting point
400
In 2011, it cost $24 per person to enter into Six Flags. Now, in 2019, the price has been increased to $72. What is the percent increase in the price?
200% increase
400
Hampton seniors are building a float for the college march. They need to create a giant chair. They base their design on a chair that is 24 inches long. If each inch represents 3 feet of the giant chair, how many feet will the giant chair be?
8 feet
400
5n-3>27
n>6
500
Create an equation given this graph
y=x+2
500
What is the y-intercept in this scenario?
Giselle bought her mom diamond earrings during the Black Friday sales. The earrings were on sale for 1/(2) of x, the original price, with an initial discount of $80.
-80
500
The price of a couch at Walmart costs $582.40. Originally, the price had been $520. By what percent did the price of the sofa increase?
12% increase or
500
City girls are some of the fastest rappers in the industry right now! JT can rap 70 words in 2 minutes. At this rate, how many words can she rap in 3/(4) minute?
15 words
500
3+2k<9
k<3