Introduction to linear functions

A linear function is simply the mathematical way of representing a straight line on the xy-plane. One important aspect of the line is its steepness or slope, typically denoted m. The slope of a line is defined as the vertical change (the “rise”) over the horizontal change (the “run”) as one travels alone the line.

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: