PEMDAS, EXPRESSIONS, INEQUALITIES
Functions and Word Problems
%, % Change, Tax, Tip and Discount
WRITING LINEAR EQUATIONS
ABSOLUTE VALUE, PROPORTIONS, LITERAL EQUATIONS
100
Solve
-(6-5v)=9-15+5v
All Real Numbers.
100
f(x)=abs(x-4)-x^2
Find f(-3)
f(-3) = -2
100
15.2 is 3% of what?
506.7
100
Write the equation of the line that passes through the point (-2,9) and has slope -2.
What is y=2x+5
100
Solve:
abs(3-8x)/10=5
{-47/3, 58/3}
200
Evaluate
4(-3)^2-(2-18-:-3)
28
200
Use a whiteboard to write this function in set notation:
{(4, 12), (4, 15), (5, 18), (5, 21), (6, 24)}
200
The price of a shirt went from $19.98 to $6.50. What is the percent change, and is it an increase or a decrease? Round to the nearest tenth.
The price decreased by 67.5%.
200
Write the equation of the line that contains (-11, 4) and is parallel to
5x=-y+5
y=-5x-51
200
Solve:
2-8abs(7n-10)=82
No Solution
300
Is x=8 a solution for 2x+10<4x-7?
No 26<25 is not true.
300
Use your whiteboard to write the domain and range of this function:
{(6, 12), (-3, 9), (6, 14), (4, 2)}
Domain: {-3, 4, 6}
Range: {2, 9, 12, 14}
300
The price of eggs went from $1.99 to $4.99. What is the percent change and is it an increase or a decrease?
The price increased by 150.8%.
300
Equation of the line that passes through (3, -3) and is perpendicular to the line y - 8 = -(x + 18)
What is y=x.
300
Solve
-4/9=(3p-7)/p
{63/31}
400
4b-8<=6b-10 or 9b+3<4b+3
b>=1 or b<0
400
One less than double a number is 5 more than the number. What is the number?
Write out all 5 steps on your whiteboard.
The number is 6.
400
Kaitlin wants to buy a pair of Beats for $120.00. If the sales tax is 6%, what is the total amount she must pay for the Beats?
The total cost with tax is $127.20.
400
Write the equation in slope-intercept form of the line that passes through the two given points: (3,9) (1,1).
What is y=4x - 3
400
Solve
(5x+3)/6=(x+5)/4
{9/7}
500
Solve
-63<9-8n<49
-5<n<9
500
The length of a rectangle is 3 times its width. The perimeter of the rectangle is 56 inches. What are the dimensions of the rectangle?
Use your whiteboard to write out all 5 steps.
Teh rectangle is 21 inches x 7 inches.
500
The $78 basketball Gabriella wants to buy is on sale for 30% off. She must pay 8.5% sales tax on the entire purchase. What is the total amount she must pay?
Gabriella must pay $59.24.
500
Are these lines parallel, perpendicular or neither? Explain.
y=1/3x+5
2y=6x+10
Neither. The slopes are reciprocals, but they are not opposites.
500
Solve for b:
(4ab)/c=12
b=(3c)/a