XAT 2015 — QA & DI Question 5
Domain & RangeEasy
Find the equation of the graph shown below.
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Answer & solution
- A
= 3x – 4
- B
y = 2x2 – 40
- C
x = 2y2 – 40
- D
y = 2x2 + 3x – 19
x = 2y2 + 3y – 19
Solution
From the graph, observe that at y = 0, x
= –19
Only x = 2y2 + 3y – 19 satisfies the above criteria.
Hence, option (e).