Question Type 2: Given asymptotes and relations between variables, coming up with the rational equation
Question Type 2: Given asymptotes and relations between variables, coming up with the rational equation Exercises
Written by official IB examiners
Question 1
Skill question
Find an expression for the rational function R(x) that has a vertical asymptote at x=0, a horizontal asymptote at y=3, a numerator with a leading coefficient of 3, and satisfies R(1)=2.
[3]
Question 2
Skill question
Determine the rational function R(x) with vertical asymptote x=5, slant asymptote y=2x+1, and satisfying R(0)=3.
[4]
Question 3
Skill question
Find the rational function R(x) with vertical asymptote x=−3, slant asymptote y=3x+4, and passing through the point (−1,2).
[4]
Question 4
Skill question
Find the rational function R(x) with vertical asymptote x=3, slant asymptote y=x−2, and passing through (1,1).
[4]
Question 5
Skill question
Find the rational function R(x) with vertical asymptote x=3, horizontal asymptote y=2, passing through the point (1,1), and whose numerator has leading coefficient 2.
[5]
Question 6
Skill question
Find the rational function R(x) that has vertical asymptote x=2, horizontal asymptote y=5, numerator leading coefficient 5, and passes through (−1,1).
[4]
Question 7
Skill question
Find R(x) given vertical asymptote x=1, horizontal asymptote y=3, R(2)=2, and numerator leading coefficient 3.
[4]
Question 8
Skill question
Determine the rational function of the form R(x)=x+cax+b with vertical asymptote x=−2, horizontal asymptote y=−1, and satisfying R(3)=5.
[5]
Question 9
Skill question
Determine the rational function R(x) which has vertical asymptote x=−2, horizontal asymptote y=1, satisfies R(0)=2, and has numerator leading coefficient 1.
[4]
Question 10
Skill question
Determine R(x) with vertical asymptote x=4, horizontal asymptote y=−2, numerator leading coefficient −2, and passing through (2,0.5).
[4]
Question 11
Skill question
Construct the rational function R(x) with vertical asymptote x=4, horizontal asymptote y=−1, passing through (−1,0), and numerator leading coefficient −1.
[4]
Question 12
Skill question
Find the simplest rational function R(x) with vertical asymptotes x=1 and x=−1, horizontal asymptote y=0, and satisfying R(2)=1.