A curve has gradient and passes through . What is its equation?
Answer and explanation
Correct answer: B.
- Step 1: Integrate: .
- Step 2: Substitute : , so .
- Step 3: .
Answer
.
Why not the others: : puts the -value in place of the constant of integration. : integrates as . : omits the constant of integration.
Practise more Integration.
Free questions with an explanation for every one, and full timed ESAT (Engineering and Science Admissions Test) mock tests.