## Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

## Question

secondary 4 | E Maths

** One Answer Below **

Anyone can contribute an answer, even non-tutors.

**Answer This Question**

The qn for this is:

Find the slope of the tangent line to the graph of the given function at the given value of x

find the equation of the tangent line

I got the slope correct but for the equation I got y=3x-3 which is different from the answer the teacher gave

Pls lemme know of the teacher’s answer is wrong?

### See 1 Answer

*done*{{ upvoteCount }} Upvotes

*clear*{{ downvoteCount * -1 }} Downvotes

Point: (1, 0)

I strongly suspect R formed the equation as follows

y = m (x + c)

0 = 3 (1 + c)

0 = 1 + c

-1 = c

y = 3 (x - 1)

y = 3x - 3

when it should be y = mx + c instead.