Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 4 | A Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
PLEASE HELP
Date Posted: 3 years ago
Views: 217
Since the line meets the curve, set the two equations equal to each other to obtain a single simplified quadratic equation.
*Don’t forget to square the line eqn!
Since it only mentioned that the line MEETS the curve, we cannot deduce if the nature of the roots of the equation are two distinct roots or equal roots.
However, we can deduce that the roots must be REAL since the line and the curve MEETS.
Using the discriminant (b^2 - 4ac) for the simplified quadratic equation, set it greater than equal to zero; b^2 - 4ac >= 0
You will obtain an inequality with k as the unknown. Solve it by making k the subject of the inequality.
And there you go! Solved
*Don’t forget to square the line eqn!
Since it only mentioned that the line MEETS the curve, we cannot deduce if the nature of the roots of the equation are two distinct roots or equal roots.
However, we can deduce that the roots must be REAL since the line and the curve MEETS.
Using the discriminant (b^2 - 4ac) for the simplified quadratic equation, set it greater than equal to zero; b^2 - 4ac >= 0
You will obtain an inequality with k as the unknown. Solve it by making k the subject of the inequality.
And there you go! Solved
See 1 Answer
360 Tutoring Program