Linear and Exponential Functions
For his gym membership, Tim pays a flat fee of $20 plus a $2 per hour. Write an equation where x is the number of hours and y is the money he pays.
What is y=2x+20
Mr Jackson has $25. He wants to buy $5 ties and $3 socks. Can he get 3 ties and 3 socks with his money and how much money if so?
What is yes with $24.
A culture of bacteria starts with 10 cells that double every minute. Does this represent a linear or exponential function?
What is exponential?
How many solutions does this linear equation have?
-4(v+3)=-4v-12
a.) Infinite (all)
b.) None
c.) One
What is infinite (all) solutions?
A=2(L+W) solve for W
What is W=2A-L
A pool contains 7,000 gallons of water and is draining at a rate of 500 gallons per hour. Write an equation to represent this relationship.
What is y=-500x+7000
(d+5)/-3=9 solve for d
What is -32?
What is the correct first step to solving this equation?
5.8t = -3.2t +7
What is add 3.2t to both sides?
What is 9 games?
ay - b = c solve for y
What is y= (b + c)/a
Susan has 17,000 hats she needs to make. She's already made 450 hats and can work at a rate of 55 hats per hour. Write an equation to represent t hours it will take her to make 17,000 hats?
What is 55t+450=17000?
6+(y/3)=-45
What is -153
3(1 +d)-5 = 3d -2
What is infinite (all) solutions?
Kris spent 23 hours baby sitting this week. If he made $287.50, what is his hourly rate?
What is $12.50?
T=1/3(r2h) Solve for h
What is h=3T/r2
A school with a population of 100 students is expected to double in size every year. Which equation represents the size of the population (p) after (t) years?
a.) p=100(2t)
b.) p=2(100t)
c.) p=2x+100
What a.) p=100(2t)
Explain the steps in the correct order for solving the following equation
(4d + 5)/7 = 7
What is multiplying 7 on both sides, subtracting 5 on both sides, and divide by four on both sides.
Christina makes $60 plus an hourly rate of $12. Which correctly identifies how much Christina makes?
a.)12 hours of work for $108
b.) 4 hours of work for $252
c.) 4 hours of work for $108
What is c.) 4 hours of work for $108
V=r2h Solve for r
What is the square root of V/h