https://vle.mathswatch.co.uk/images/questions/question18450.png

plz help

thank you

Guest Mar 24, 2020

#3**+2 **

I'll help! Since the gradient is (change in y-coordinate)/(change in x-coordinate), we can find out d.

We know that y2-y1/x2-x1 will get us the gradient, so we will plug in the values.

(21-6)/(d-4)=3.

15/(d-4)=3

d-4=5

Therefore, d=9.

Hope this helped!

CalTheGreat Mar 24, 2020