y=mx+b
Given: y=1/3x+9
a) Identify the Slope.
b) Identify the Y-intercept.
a) m =1/3
b) b =9
3 friends split the cost of a pizza and each pays the same amount. The total cost is $27. How much does each person pay?
$9
Rewrite this expression:
1/x^5
x=6
b=-7
Create an equation given:
Y-intercept = -4
Slope = 3/5
y=3/5x-4
Ms. Jones gave us $180 for the cafè budget for this year, but we spend $20 dollars a month. Write an equation representing how many months we will last.
20m=180
Simplify using exponent rules:
x^11y^2
Solve for x:
2(5x-2)=36
x=4
Simplify.
x^3y^5
What's the slope of a line that runs through the following points:
(-1,3) (5,-9)
m=-2
A number is increased by 8, and the answer is 5 times the original number.
Write an equation using x as the original number represented in this situation and solve for it.
x+8=5x
x=2
Simplify:
21x^7
Solve for x:
8x-2y=13
x=(13+2y)/8
Combine:
(4x+6)(x-2)
4x^2-2x-12
Create an equation given the following graph:
y=-4x+8
You start with $50 in your savings account and deposit $12 each week. After some weeks, you have saved $170 total.
Write an equation representing this situation.
50+12w=170
Simplify.
25y^6
Solve:
Prepare for absolute value
x=6
Make an equation and solve:
You have $90 saved. You want to buy a jacket that costs $150. If you save $15 each week, how many weeks will it take until you have enough money?
90+15w=150
w=4
Partner Mash Up! Identify Partners A and B
1) First, Partner A find the Slope given (2,12) (7,4) & write the equation.
2) Second, Partner B take the equation, and find the y-intercept and rewrite the equation.
y=-11/7+15
Tickets to a concert cost $25 each. There is also a one-time online processing fee of $18. You spend a total of $168.
Write an equation to represent how many tickets you bought and solve it.
25x+18=168
x=6
Simplify.
2x^5
Solve for x:
16+3(6x-2)=172
x=9
Solve for x:
x=18.5