Evaluating Expressions
Evaluate -2x2+x when x=4
-28
Solve for p.
-40 = -5p
According to Greg, the perfect cherry pies have a ratio of 240 cherries to 3 pies. How many cherries does Greg need to make 9 perfect cherry pies?
720 cherries
If f(x)= -3x+2 evaluate f(-5).
17
Find the slope between (1,10) and (2,5)
m= -5
The Tellacso Theater has a capacity of 350 seats. The theater is expected to sell 23 tickets per hour to the play once they go on sale. Write an expression that represents the remaining tickets after x hours.
350-23x OR -23x+350
If 4= x-35, what is the value of x-3?
The ratio of Jared’s stamps to Paulo’s stamps is 4:7. If Jared has 36 stamps, how many stamps does Paulo have?
63 stamps
Evaluate g(-3) when g(x)=3x2-6
21
Write the equation: Kinzie’s grandma bought her a $25 giftcard to Thriftbooks, an online website that sells used books. If each book costs about $4, write a function that represents the remaining amount on Kinzie’s gift card after buying x books.
y=25-4x
Simplify
(2x+3xy)-3(4xy-6x)
20x-9xy
A cell phone company offers a contract that costs $14.99 a month plus $0.06 per minute. The bill for October was $20.21. How many minutes were used?
87 minutes
There are 400 students that attend John Smith High School. 34% of students ride the bus to school every morning. How many students ride the bus to school each morning?
136
If f(x)= -3x+2 evaluate f(x)= -10
x=4
Rewrite in slope intercept form:
4x+3y=9
y= (-4/3)x+3
Simplify the following expression completely.
2(x-4)-3x(5+2x)
-6x2-13x-8
Solve for x
11-3x=8+3(1-x)
infinite solutions
Gordon purchased a television when his local electronics store was having a sale. The television was offered at 30% off its original listed price of $472. How much will Gordon pay for the TV?
$330.40
If f(x)=-3x+2 and h(x)=5x-2 , evaluate f(2)+h(2).
4
Write an equation that passes through (-3,1)and (-4,5)
The sum of 3x2-8x+9 and 6x2+14x+17 can be written in the form of ax2+bx+c. Which of the following is the correct value of b+c?
32
Ms. Wolf and Ms. Anthony are comparing the prices of two gyms. Average Joe’s costs $35 to sign up and $35 per month. Globo Gym costs $75 to sign up and $25 each month. After how many months will the two gyms cost the same?
4 months
Baby Zoe drinks a lot of milk. How many gallons are in 20 pints of milk? (1 gallon=4 quarts, 1 quart=2 pints)
2.5 gallons
If f(x)=x3 and g(x)=2x2+3x-4, evaluate f(3)-g(-2).
29
Write an equation in slope intercept form that passes through (1,-1)and is perpendicular to y= (1/6) x-2
y= -6x+5