Amy is on a weight loss show. When the show began, she weighed 231 pounds. During the show, she lost 4 pounds per week. Which equation represents the amount of weight she lost?
y=-4x+231
A taxi charges $3, plus $1.50 for each mile traveled. Mr. Lewis rode in the taxi from his home to the airport and was charged $30. How many miles does Mr. Lewis live from the airport?
18 miles
What is the slope of the line?
2/3
Rise over Run is the same as
Slope
Marcus has a landscape company where he spreads pinestraw. He charges a $20 delivery fee and $3.50 per bale of pinestraw. Which equation represents the amount of money that Marcus charges?
y=3.5x+20
What is the first step to solve this equation:
-3x + 11 = 44
Subtract 11 from both sides.
What is the y-intercept of the line?
-4 or (0,-4)
What's the slope of the line?
Undefined
Suppose that a bike rents for $4 plus $1.50 per hour. After how many hours will the bike rental cost a total of $10?
4 hours
Last Friday Trevon had $29. Over the weekend he received some money for cleaning the attic. He now has $41. How much money did he receive?
$12
What is the x-intercept of the line?
3 or (3,0)
What's the y-intercept of the following line:
None; there is no y-intercept
Write an equation to represent: Bob has $150 in his savings account and saves $40 per month.
y=40x+150
In y=mx + b, what does the "b" represent?
the y-intercept
What is the slope of the line?
0
How does the value of "m" determine the appearance of a line on a graph?
It determines if it's rising, falling, vertical or horizontal/or it determines the direction
An internet company charges a $100 set up fee, and then they charge $35 a month after that. What is the rate of change?
$35
Last week Julia ran 30 miles more than Larry. Julia ran 47 miles in total. How many miles did Larry run?
17 miles
What's the slope of the line?
m=-3/4
Suppose that the water level of a lake is 35 feet and that it is receding at a rate of 1.5 feet per day. What slope best represents this situation.
-1.5