Which point represents the y-intercept of the function?
(0, 2)
What is the y-intercept of the function?
(0, -1)
Evaluate f(5) for the function f(x)= 4x-6
f(5)=14
Jill opens a savings account at the local bank. She makes an initial deposit of 150 dollars and then deposits 25 dollars per month. Which value represents the rate of change?
25 dollars per month
What is the slope of the line?
m= 2
What is the slope of the function?
m= 2
If f(x)=3x-10, find f(10)
20
Alex leaves Dalton on a road trip to visit his cousin in Dallas, Tx. The number of miles he travels per hour is represented by the function f(x)= 814- 70x. Answer the following questions using the above information.
a) how many miles is it from Dalton to Dallas?
b) on average, how fast is Alex driving?
b) 70 mph
Evaluate f(-3)
f(-3)= -5
Does this table represent a linear function? How do you know?
No, because the output is changing by multiplication and not by a constant rate (addition)
What is the value of f(4), in the function f(x)=2x+(x-6)
6
An ice cream shop recorded the number of customers it served over the course of one business day. At the end of the day, the ice cream shop noted that when the doors opened, 25 people were lined up to enter the store. Then, each hour, the shop served 12 additional customers. Write a function to represent the number of people the ice cream shopped served.
f(x)=12x+25
What is x when f(x)= 3.5
x= 3
What is the y-intercept of this function?
(0, 5)
Find f(0), if f(x)=x^x+3x-18
-18
A movie theater recorded its ticket sale for one night. The theater has a %50 discount for children's tickets. At the end of the night, the theater set up the following system of equations to determine the ticket sales and profit for the evening.
10x+5y=2,000
x+y= 300
Use the system of equations to answer the following questions.
a) what is the cost of 1 adult ticket?
b) How much money did the theater make?
c) How many children's tickets were sold?
a) $10
b) $2,000
c) 200
Where does f(x)=g(x)?
(1, -3)
What is the x-intercept of this function?
(-3/2, 0)
If f(x)=3x^2+5x+1, what is f(2)?
23
For a fundraiser, the DJHS pep club decided to sell t-shirts. The club sold short-sleeved shirts for $10 each and long-sleeved shirts for $15 each. If the pep club sold a total of 50 shirts and made $500, how many long-sleeved shirts did the pep club sell?
12 long-sleeved shirts