YONG KAI JIE's answer to Koh's Secondary 4 A Maths Singapore question.
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There are 2 unknowns, the x and y coordinates or R. To find both you need 2 equations.
The first is given to you in the question. Apply the formula of triangle and equate it to 20.
The second you can use linear equation. The y intercept is -2.
Apply simultaneous equation solving on both equations to get the answer.
The first is given to you in the question. Apply the formula of triangle and equate it to 20.
The second you can use linear equation. The y intercept is -2.
Apply simultaneous equation solving on both equations to get the answer.
Date Posted:
2 years ago
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