Linear & Exponential
(-1, 2) (0, 6) (1, 18) (2, 54)
a) What type of function is this?
b) What is the rate of change?
a) Exponential function
b) The rate of change is multiplying by 3.
Find the intercepts of the following equation:
5x+3y=30
Only x: ( , )
Only y: ( , )
Only x: (6, 0)
Only y: (0, 10)
Describe the graph of:
x < - 10
Open circle at -10
Pointing to the left
Solve for x.
3/5 = x/20
x=12
After this week, how many weeks of school are there left?
3 weeks!
(-1, 2) (0, 6) (1, 18) (2, 54)
Write the function rule:
f(x) = 6(3)x
Football sells $8 tickets for ASB members and $10 for non-members. You have $160 to spend.
a) If you buy only ASB member tickets, how many could you buy?
b) If you buy only non-member tickets, how many could you buy?
a) You can buy 20 ASB member tickets.
b) You can buy 16 non-member tickets.
Describe the graph of:
You must be at least 65 inches to ride the roller coaster
Closed circle at 65
Arrow pointing right
Solve for x.
4/3=x+1/6
x=7
Where did Mrs. Mosey go to college?
UC Irvine!
(-1, 80) (0, 20) (1, 5) (2, 1.25)
Write the function rule:
f(x)=20(1/4)x
Solve using substitution.
B=2A+3
3A+4B=1
A = -1, B = 1
3f > -8f + 33
Solve the inequality.
f > 3
Mr. Einstein's motor scooter can go for 110 miles in 4 hours.
If he drove his scooter for 385 miles, how long did he ride for?
Name 3 math teachers at our school:
Ms. Fu, Mrs. Mosey, Mrs. Beck, Mrs. Gilles, Mrs. Botha, Mrs. Banaban, Mrs. Bradshaw, Mrs. Kurdziel, Mrs. Hudgins, Mr. Shulman, Mrs. Van Guilder, Mrs. Hsieh, Mr. Kinney, Mrs. Chang, Mrs. Huber
Evaluate:
80(2)-4
5
Solve using elimination:
8x - y = 30
4x + 2y = 40
(5,10)
3x - 2 < 4 or 2x - 5 > 3
Solve the compound inequality.
x < 2 or x > 4
26 is 40% of what number?
65
What is Mrs. Mosey's due date?
June 21
A scientist has one bacteria in his sample dish, and records that it doubles each second.
If there are 256 bacteria, how many seconds passed?
8 seconds
Bowling costs $2 to rent shoes, plus $5 per game.
Mini golf costs $5 to rent a club, plus $4 per game.
a) How many games would be the same total cost for bowling and mini golf?
b) What is that cost?
a) 3 games
b) $17
Trojan Gym has a starting membership fee of $50 and charges $20 each month. University Fitness has a starting membership of $40 and charges $25 each month. When will University Fitness become more expensive than Trojan Gym?
x > 2
After 2 months
A designer backpack is on sale for 49% off. If the original price is $275, what is the sale price?
$140.25
What will Mrs. Mosey name her baby girl?
Did you really think I would tell you?