STUCK ON HOMEWORK?

Question

Question

S3 Mathematics

Question post on Sun, 16/04/2017 9:44pm

Another secondary three math Q need to ask for help, thx

The y-intercept of the line 2x+ky-6=0is -2

Find

a) the value of k

b) the gradient of the line

BigDevil · Answer 1 · Post on Mon, 17/04/2017 12:41am

BigDevil Post on Mon, 17/04/2017 12:41am

2x + ky – 6 = 0

ky = 6 – 2x

At the y-intercept, x = 0, y = -2

k(-2) = 6 – 2(0)

-2k = 6

k = -3

(b)

Gradient of the line is 2/3

zinmkw · Answer 2 · Post on Mon, 17/04/2017 8:13pm

zinmkw Post on Mon, 17/04/2017 8:13pm

Thank you so much BigDevil for taking time answer the question

BigDevil · Answer 3 · Post on Mon, 17/04/2017 8:22pm

You are welcome.

My kid is in Sec 2, so this is my way of brushing up my rusty secondary school math.