Write an equation in Slope-intercept form
m = -4
b= 5
y= -4x + 5
(5, 7) and (3, 6)
What is
1/2
Joey wants to get a gym membership. New members pay a one time fee of $45, then $30 per month.
If you were to graph this, what would the y-intercept be?
b = $45
What is slope intercept form?
y = mx + b
What variable represents y-intercept?
What is b?
m=1/2
b=-4/5
What is
y=1/2x-4/5
(2, 5) and (8, 1)
What is
-2/3
Josiah started a lemonade stand. He spent $12 on supplies and ingredients, and sells each cup for $3.
Write the equation to calculate his profits.
y = 3x - 12
What is the slope?
y = 3x - 5
m = 3
The "rise" in slope comes from which axis?
y-axis
m= 0
b= -5
y= - 5
(0, 20) and (10, 0)
What is
-2
Keci decided to buy into a pyramid scheme. She's going to sell makeup kits to her friends. She spent $350 on the start-up kit, and sells individual kits for $50 each.
What is the rate of change in this equation and how many kits would she need to sell to make her initial investment back?
m = $50; She would need to sell 7 kits to make her money back.
What is the y intercept?
y = -3x - 7
b = -7
Christmas!
m=1
b=-1
What is
y=x-1
(2,3) and (9,7)
What is
4/7
Malik bought a new car. It had 32,000 miles on it when he bought it, and he put roughly 3,000 miles on it per month. What is the equation to find the mileage after x months for this scenario?
y = 3000x + 32000
The equation y = 150x + 200 represents the amount of money Bodhi is saving monthly for his summer vacation. What does the slope in this scenario represent?
The amount he is able to save per month.
Slope is a ratio of...
rise over run
m=12
b=0
y=12x
(0,10) and (5, -5)
What is -3?
Meleah got a giftcard to Starbucks that had $30 on it. She gets a tall hot chocolate each time she goes, which costs $6. Would this equation have a positive or negative rate of change when trying to solve for how many hot chocolates Meleah could purchase?
Negative
Given:
y=-1/3x
Find:
m=
b=
What is
m=-1/3
b=0
What is slope-intercept form and what does it tell us?
y = mx + b;
It gives us the slope and y-intercept of a graph.