CPM Homework Banner

Home > PC3 > Chapter 8 > Lesson 8.3.3 > Problem 8-126

8-126.
  1. Given f(x) = . Homework Help ✎

    1. What is the value of f(–1)?

    2. Evaluate . Hint: Use polynomial division.

    3. Use what your answer to part (b) to sketch y = f(x) without using a calculator.

    4. If y = f(x) continuous at x = –1? Use the definition of continuity to justify your answer.

What happens when the denominator is 0?

Substitute x = −1 into the quotient.

You know it is a parabola with a hole at x = −1. Find the x-intercepts by factoring.