Practice Y-intercept (6.2) - Rational Functions - IB 10 Mathematics

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Find the y-intercept of $f(x) = \frac{x + 1}{x - 1}$ .
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Substitute x = 0 and simplify.
Question 2.
Determine the y-intercept for $f(x) = \frac{x^2 + 2}{x}$ .
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Remember to set x = 0 and check your function.
3Question 3.
How do you find the y-intercept of a function?
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Think about which value we set to find the crossing point.
4Question 4.
True or False: The y-intercept is where a function meets the x-axis.
- True
- False
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Remember the axes' definition!
Question 5.
Determine the y-intercept of the rational function $f(x) = \frac{3x^2 - 2x + 1}{2x + 1}$ and discuss any restrictions.
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Evaluate f(0) and check the denominator.
Question 6.
For the function $f(x) = \frac{x^2 - 1}{x - 1}$ , find the y-intercept and determine the significance of its undefined points.
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Evaluate f(0) and consider simplifying.

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