Practice X-intercept (6.1) - Rational Functions - IB 10 Mathematics

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Find the x-intercept of f(x) = (x + 5)/(x - 1).
Show hintHide hint
Set the numerator equal to zero.
Question 2.
What is the x-intercept for f(x) = (3x)/(x + 2)?
Show hintHide hint
Remember, if the numerator is zero, the function is zero.
3Question 3.
What is the x-intercept of f(x) = (x - 2)(x + 3)/(x - 1)?
- x = -3
- x = 2
- x = 0
Show hintHide hint
Remember, x-intercepts are found when the numerator equals zero.
4Question 4.
True or False: The x-intercept occurs at the point where the function value is zero.
- True
- False
Show hintHide hint
Recall the definition of x-intercepts.
Question 5.
Create a rational function and find the x-intercept. Explain your reasoning.
Show hintHide hint
Choose any values for the numerator that allow easy factoring.
Question 6.
Given f(x) = (4x - 8)/(x^2 - 4), find the x-intercept. Discuss any restrictions.
Show hintHide hint
Factor numerator and consider where denominator is zero.

4 more questions in this section. Enroll free to practise them all.