- #1

trollcast

Gold Member

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## Homework Statement

2 curves f(x) and g(x) don't intersect, find the range of values of m can be.

## Homework Equations

$$f(x)=3x^2 - 2$$

$$g(x) = mx-5$$

## The Attempt at a Solution

Could I work out the 2 values for m that mean g(x) is a tangent to f(x) at some point and then the range will be between them?

PS. I've already solved it via another approach but I was just wondering if this would work as it was my first initial idea on solving it.

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