Graphing
In the equation y=4x+1, if x is 0, what is y?
1
What is the slope a line that goes through the points (3,2) and (6,8)
2
True or False-A relation is a set of ordered pairs
What is TRUE?
Evaluate f(x)=-3x if x=2
What is -6?
Let's go mini-golfing! It costs $ 12 (y) to play 3 mini golf rounds (x). Write an equation that represents this relationship. (hint: Find the unit rate/slope and then use the equation y=mx)
y=4x
In the equation y=-3x+2, what is the y-intercept?
2
What is the slope a line that goes through the points (1,2) and (5,12)
5/2
The set of first coordinates of a relation or a function
What is Domain?
Evaluate f(x)=2x+1 if x=-2
What is -3?
A cell phone plan costs $10 per month plus $0.10 for each minute used. Last month, you spent $18.50 using this plan. This can be modeled by the equation below: 0.1m + 10 = 18.5. How many minutes did you use last month? (Solve for m)
What is 85 minutes?
In the equation 2x + y=6, what is the y intercept?
6
What is the slope a line that goes through the points (-2,4) and (4,7)
1/2
The set of second coordinates in a relation or a function
What is the range?
Evaluate f(x)=-3 - x if x=6
What is -9?
A boa constrictor is 18 inches long at birth and grows 8 inches per year. Write an equation that represents the length y (in feet) of a boa constrictor that is x years old.
What is y=8x + 18?
What is the slope and y-intercept of this equation? y = -x + 3
-1 and 3
What is the slope a line that goes through the points (-2,-4) and (-4,-7)
3/2
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
Evaluate f(x)=25 + 4x if x=5
What is 45?
You organize a garage sale. You have $30 at the beginning of the sale. You earn an average of $20 per hour. Write an equation that represents the amount of money y you have after x hours.
What is y = 20x + 30?
Write an equation in point slope form for the line that passes through 0,3 and has a slope of -2
y = -2x + 3
What is the slope a line that goes through the points (-15,15) and (5,-30)
-3/4
The test to tell if a graph is a function
What is the Vertical Line Test?
Evaluate f(x)=-(4x+2) if x=7
What is -30
One of your friends gives you $10 for a charity walkathon. Another friend gives you an amount per mile. After 5 miles, you have raised $13.50 total. Write an equation that represents the amount y of money you have raised after x miles.
What is 5x + 10 = 13.50?