Question

How can you tell if a graph is linear or non-linear?

Answer 1

we can determine whether a function is linear or nonlinear simply by looking at its graph! Because the rate at which y is changing with respect to x is constant in a linear function, the graph of a linear function is a line, as the name implies.

Explanation:

Answer 2

Basically a Linear function is a function that has at least both of these:

Explanation:

1. A slope, Requirement: rate of change stays constant)

2. One input goes to goes to only one output(however a output can have two different inputs but they must only go to that one output).

example:

x | y

________

0 | 25

2 | 85

4 | 145

6 | 205

The slope for that example was 60.

you can use slope intercept form to find your answer equation being:

Y = mx + b

y = total

m = slope

x = domain

b = y- intercept