The graph of a function must be linear if it has what characteristic?

Hello!

The graph of a function is linear is the function in it is a linear function.

A linear function is a function of the form f(x) = ax + b, where a is the slope and b is the x-intercept, both real numbers and constants.

In this case f(x) = y, and in your graph you put the pair (x,y), where the relation between y and x is a linear relation, and its represented by a linear graph.

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step-by-step explanation:

u dumb boi

step-by-step explanation: