What is the rule that assigns to each input value exactly one output value?
function
100
If the ratios are the same, the relationship is called ______.
proportional
100
What kind of line do you need for it to be a linear graph?
straight
100
Nonlinear graphs show that the line is __________.
not straight
200
What is the x axis called?
horizontal line
200
How do you solve d=3s + 50 in one step? s = 10
3(10) + 50 = 80
200
How can you tell if the relationship is proportional?
How can you tell if the relationship is proportional?
put input over output and create a fraction for each number given. If the number is the same for all of them, then it is proportional
200
Explain how to solve a funtion table for a linear line.
determine the difference between the x and y numbers and create a fraction for each.
200
nonlinear
If the ratio between the changes in variables in a table are not the same then the function is ___________.
nonlinear
300
What is the y axis called?
vertical line
300
t = 3m - 20 What is the input and what is the output variable?
input = m; output = t
300
Is this a proportion? 1/50; 1/50; 3/50; 1/50
no
300
What is it called when all of the fractions are the same?
constant
300
What exponent shows that the function is nonlinear?
2 or squared
400
What is the straight line called on a graph?
linear
400
find the output in the following table:
y = 2x + 3
input (x) output (y)
4
__________________
5
__________________
-3
__________________
11,13,-3
400
Use the function d = 3t to tell if it is proportion
t d
1 __
2 __
3 __
4 __
yes or no?
yes
400
If the ratios between the changes in variables are the same, then the function is ____________.
linear
400
not the same fraction or constant
What does the function table show to prove that it is nonlinear?
not the same fraction or constant
500
You walk to a friend's house. It takes 20 minutes to get to the park. For the next 10 minutes, you stop at Dairy Queen. It takes 25 more minutes to get to your friend's house. How long did you walk for?
45 minutes
500
What is the two variables that are necessary to solve a function rule?
input;output
500
If the function is proportional
What will a graphing line in an input/output table tell you?
If the function is proportional
500
What does continuous data mean?
he graph keeps on going
500
straight
Does a line need to be straight or curved to be nonlinear?