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Secondary 1 | Maths
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Jaren Oon
Jaren Oon

Secondary 1 chevron_right Maths chevron_right Singapore

I can’t understand the question therefore I am not able to answer. Please help me to answer this question with explanation. Thanks.

Date Posted: 6 days ago
Views: 18

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Luffy the pirate
Luffy The Pirate's answer
3 answers (A Helpful Person)
1st
Hope this helps
Jaren Oon
Jaren Oon
5 days ago
Thank you for your answer. To clarify on Step 3, why substitute X-coordinate with (2k) instead of (3k-6). Like wise for Y-coordinate?
Luffy the pirate
Luffy The Pirate
3 days ago
The coordinate is always in this format (x,y) . Agree? Since it states the point is (2k, 3k-6) . So the x coordinate is 2k and y coordinate is 3k-6.

Sub the coordinates into the line of equation y = 3x + 15 .
Jaren Oon
Jaren Oon
3 days ago
Thank you very much. Fully understand the logic.
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VT Teaches
Vt Teaches's answer
6 answers (Tutor Details)
Step 1 - substitute your coordinates into the equation, replacing x and y

Step 2 - is what you will get after substitution

Step 3 - Cross multiply to remove the denominator

Step 4 - solve for k
Jaren Oon
Jaren Oon
5 days ago
Thank you for your answer and explanations. May I clarify, why (y) substituted with (3k-6) and (x) substituted with (2k), can it be substituted vice versa.