Linear Function Vocabulary
What is the (input) and (output) when looking at a table ?
X--> input
y--> output
y=3x-2
LINEAR
2(x+4)=10
x=1
6x+5= 18-7x
x=1
SURVEY
The _________ is the point where a line crosses the y-axis on a graph.
Y-intercept
Y=3X2 +2X + 1
NON-LINEAR
3x + 4 -2x=3
x=-1
2x - 4 = x + 4
x= 8
The ______ is the average of a set of numbers. It is calculated by adding all the numbers together and dividing by the total number of numbers.
MEAN
What relationship shows a constant rate of change?
A linear relationship
(x,y): (0,1), (1,3), (2,6), (3,9)
NON-LINEAR
-6x -3 +8x=-7
x=-2
x + 8= 13 +2x
x= -5
The ______ is the middle value when the numbers are arranged in order.
MEDIAN
The ______ __ _______ is how one quantity changes in relation to another
Rate of Change
(x,y): (1,3), (2,5), ( 3,7), (4,9)
LINEAR
6(3x +1)=96
x= 5
9x + 20= x +148
x= 16
The ______ is the value that appears most frequently in a data set.
MODE
A ______ is a way to measure how steep a line is; calculated by dividing (the rise) over (the run)
SLOPE
A job pays $12/hour + $10 tip. Write an equation and say if it is linear or non-linear.
y= mx+ b --> y=12x +10
LINEAR
3(-5x +9)= -108
x= -9
71- x = 15 + 19x +16
x= 2
A _____ is a plot (graph) of quantitative information where individual data points are represented as discrete dots along a simple scale.
DOT PLOT