Find the output in y=x+7 if x=2
y= 2+7 so y=9
The slope of the line between the points (2,5) and (7,9)
What is 4/5
Identify the domain
(-1,4) (3,6) (7,8) (11,10)
{-1, 3, 7, 11}
In the function y=3x+1, what is the rule?
multiply by 3 then add 1
Define slope
change in the y-values over change in x-values or rise over run
Find the output in the function y= x/4 + 2, when x=16
y= 16/4 + 2 so y= 4+2 = 6
Slope between (19,3) and (15,3)
What is 0 or 0/-4
Identify the range
(-1,3) (3,7) (7,11) (11,15)
{3, 7, 11, 15}
In the function y=-2x+4, what is the rule?
Multiply by -2 then add 4
What is the definition of range?
The set of output values (all values of y).
In the function y=-3x-10 find the output when x=-1
y=-3(-1)-10; y=-7
Slope of a line between (4,7) and (-2,5)
What is 1/3 or 2/6
Find the missing domain value (find the pattern)
(2,5) (6,3) (10,1) ( ? ,-1) (18,-3)
What is 14, pattern is add 4
What is the rule in y= x/5 - 2
divide by 5 then subtract 2
What is the test to tell if a graph is a function?
Vertical Line Test (VLT)
Find the output in the function y=x/-2 - 3, when x=10
y= 10/-2 - 3; y= -5 - 3 so y=-8
Slope of a line between (19,-16) and (-7,-15)
What is -1/26
Find the missing range value (find the pattern)
(-2,11) (0,8) (2,5) (4, ? ) (6,-1)
What is 2, pattern is subtract 3
What is the rule in the function y=-3x-10
multiply by -3 then subtract 10
What is the definition of domain?
The set of all input values or the x-values
In the function y= 2x/3 +1 find the output if x = 6
y= 2(6)/3 + 1; y= 12/3 + 1 so y= 4+1 = 5
y=5
Slope of a line between the points (-3,10) and (-3,4)
What is undefined
Find the missing point (find the pattern)
(9,-2) (7,1) (5,4) (x, y) (1,10)
(3,7)
What is the rule of the function 2x/4 + 7
Multiply by 2 then divide by 4 last add 7
Define function.
an equation having exactly one output for each input value