Equations
Inequalities
Solutions?
Functions
Stats
100
Solve:
(x+3)/2 = 20
37
100
Jodi was trying to earn at least as much money as her siblings, Mathew and Thomas, combined. Write an inequality to represent the situation between Jodi "J", Mathew "M", and Tyler "T".
J>=M+T
100
Is (4,5) a solution to the system?
y = 2x -3
y = x -1
No, it works in the first but not in the second.
100
f(x)= 3x - 10
Find
f(2)
f(2)=-4
100
What is the relationship between the quantities?
As the weight increases the cost also increases.
200
Andy was shopping. Each book was $10 and each magazine was $8. Write an equation representing the total cost C of "b" books and "m" magazines.
C=10b+8m
200
A'Maya was trying to listen to the advice of her Tax guy. He said that she can make no more than $24,000 to keep from having to pay way more in taxes. She makes $20 per hour on one job and will get $8000 from a side job this year. Write an inequality to present the number of hours (h) she can work at her main job without paying extra taxes.
20h+8000<=24000
24000>=20h+8000
200
Is (3,1) a solution to the system? Explain.
No it is on a dotted line which doesn't count.
200
Find
F(3)
2 and -2 need to be listed to be correct.
200
What is the 5 number summary of this boxplot?
Min: 20
Lower Quarile: 30
Median: 63-65???
Upper Quartile: 70
Max: 93-95???
300
Write an Equation for this line.
y=2x+4
300
Solve the inequality:
-2(x+4) < 2x + 12
x> -5
300
Jasmine was ordering pizza for a party. She ordered $8.75 pizzas (x) and $6.50 breadsticks (y). She paid $126.50 for all the pizzas. She forgot later how much she ordered. Could the answer be (10,8)?
No, (10,8) would cost her $139.50.
300
Which is highest? F(1), F(2), F(3), or F(4)?
F(3)
300
What is the PERCENTAGE of people who bought sodas.
200/400 is 50%
400
Which of these equations is equal to
8-3(x+3)=(6x+9)/3
A.
-3x+17=(6x+9)/3
B.
8-3(x+3)=6x+9
C.
-3x-1 = 2x+3
C
400
Marcus is trying to use the y-intercept and inequality sign to pick a multiple-choice answer for this inequality:
y<-2x+4
Which of the following is correct about the graph he should be looking for.
A. It should be crossing at -2, Dotted, shade up.
B. It should be crossing at 4, Solid, shade down.
C. It should be crossing at -2, Solid, shade up.
D. It should be crossing at 4, Dotted, shade down.
D. It has a y-intercept at (0,4) and y is less than so dotted shade down.
400
Label this as one solution, no solution, or infinitely many solutions.
y=1/3x+5
3y=1x+15
Infinitely Many Solutions
400
Julie was riding a roller coaster. The function F tells how high she is off the ground at t seconds in the roller coaster ride. Write in function notation to describe Julie being 124 feet in the air after 6 seconds.
F(6) = 126
400
The equation y = 25x - 110 represents the line of best fit. What does the y-intercept represent in the situation?
When the tempature is at 0 degrees Celcius the sales are at -$110. So they are losing money!!
500
What is the solution to the system of equations?
9x+3y=9
y=-3x+5
No Solution
500
Write two points that are solutions to the system of inequalities graphed.
Any ordered pairs in the overlapped region.
500
Label this as one solution, no solution, or infinitely many solutions.
y=-2x+5
y=4x+2
One Solution
500
What is the domain and range of this function.
Domain: 0-9 minutes
Range: 0-4 km
500
Which is the correlation coefficient?
A. -0.8 B. 0.8 C. 0.4 D. -0.4
D. It is going down and dots aren't close to the line so low percent accuracy.