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Question
secondary 3 | A Maths
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help pls ><
Date Posted: 5 years ago
Views: 328
Follow these steps:
1. Substitute the first equation into the parabola equation
2. Solve for the 2 values of x, which are the x-coordinates of A and B.
3. Substitute into the first equation to determine the y-coordinates of A and B.
4. Find the coordinate of the mid point of AB.
5. Calculate the gradient of AB
6. Use m1 x m2 = -1 to determine the gradient of the perpendicular bisector.
7. Use the mid point of AB and the gradient from 6, to find the equation required.
1. Substitute the first equation into the parabola equation
2. Solve for the 2 values of x, which are the x-coordinates of A and B.
3. Substitute into the first equation to determine the y-coordinates of A and B.
4. Find the coordinate of the mid point of AB.
5. Calculate the gradient of AB
6. Use m1 x m2 = -1 to determine the gradient of the perpendicular bisector.
7. Use the mid point of AB and the gradient from 6, to find the equation required.
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