Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Remember for part (i),
When you have two perpendicular lines, the product of their gradients is -1.
i.e.
given y1= m1.x1 + c1 and y2= m2.x2 + c2 are perpendicular to each other,
m1 x m2 = -1
When you have two perpendicular lines, the product of their gradients is -1.
i.e.
given y1= m1.x1 + c1 and y2= m2.x2 + c2 are perpendicular to each other,
m1 x m2 = -1
Date Posted:
3 years ago
One more thing:
Always substitute the values of the coordinates (x,y) back into your answer to quickly check if you got it right
Always substitute the values of the coordinates (x,y) back into your answer to quickly check if you got it right