# If a function of the form #y=ax^2+k# has an #x#-intercept of 7.5, what is the other #x#-intercept?

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- How do you find the domain, VA, HA, Zeros and intercepts of #y=(x^2-16)/(x^2-4)#?
- What is the inverse function of #y=x^2+2x-1#?
- What is the domain of the piecewise function #absx + 1, x < 1# and #-x + 1, x ≥ 1#?
- How do you know if #f(x) = x^3 + x sin^2 x# is an even or odd function?
- How do you determine if #y=2x^3 + 4x# is an even or odd function?

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