Question

True or False: We are only able to determine if a function is linear by graphing it

Answer 1

You can see that if rate of change changes as you add +1 to the x, then it is not linear.

Answer 2

@SolomonZelman

Answer 3

When the power of x is 1 (typical line) or 0(horizontal line), then it is linear.

Answer 4

To PROVE you would probably need to graph, though.
But to determine if the function is linear, do you think you need to graph it each time?

Answer 5

so its true

Answer 6

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Answer 7

You asked me if the only sweet food is ice-cream, and I listed other cakes and candy.