Direct Variation
Systems of Equations
Functions
Word Problems
Mystery
100
What is the proportional constant (k) for the following function? 
3
100
Graph the following system of equations on Desmos. What is the solution?
y=-3x-4
y=1/2x-5
(0.4,-5.2)
100
What is the slope of a line that passes through the points (2,3) and (8,21)?
3
100
Water is drying from a puddle at a rate of 2 gallons per day. There are currently 17 gallons in the puddle. Write an equation to represent how much water is left (y) after x days.
y=17-2x
100
What is the value of x that makes the following equation true?
2(x-2)=16
10
200
The variable y varies directly with x. If y=35 when x=5, what is y when x=7?
49
200
What is the x value of the solution to this system of equations?
3x + 6y = 27
x=11-3y
x=5
200
The table below shows the amount of students (y) still taking the test after a certain number of minutes (x). What function models this situation?
y=-1/2x+30
200
There are 17 tacos in a box. The weight of each taco is either 8 ounces or 9 ounces. The weight of all the tacos combined is 143 ounces. Write a system of equations to find the number of 8 ounce tacos, x, and the number of 9 ounce tacos, y, that are in the box.
x+y=17
8x+9y=143
200
What is the slope of a function that is perpendicular to the following line?
y=2/3x-3
-3/2
300
The value of y varies directly with the value of x. If x = 12, then y = 60. What is the value of x when y = 100?
20
300
What is the solution to this system of equations?
y=-2
y=4
No Solution (DNE)
300
What is the equation of a line that passes through the point (2,5) and has a slope of zero?
y=5
300
A customer at a store paid $37 for 2 large pizzas and 3 small pizzas. At the same store, a second customer paid $2 more than the first customer for 4 large pizzas and 1 small pizza. Write a system of equations that can be used to model this situation.
37=2x+3y
300
The table shows the relationship between minutes spent cooking and number of meals you can cook.
What is the rate of change in number of meals you can cook with respect to the number of minutes spent cooking?
1/15