Question

Find the slope and the y-intercept of the line C(1,1) and D(-2,3)

Answer 1

The slope of the line through points (x1,y1) and (x2,y2) is given by :
\(\huge m=\frac{y_1-y_2}{x_1-x_2}\)
now,just put the values and find m.

Answer 2

3-1/2-4 = -2/3

Answer 3

x1-x2 = -2-1 = ?

Answer 4

so,,, 1 = -2/3 (1) +b

Answer 5

huh??? how did you get that?

Answer 6

oh ,nothing, u mistyped it as 4, but your slope = -2/3 is correct :)
and 1 = -2/3 (1) +b is also correct, find b from here

Answer 7

b=3/2?

Answer 8

b=1+2/3 = 5/3

Answer 9

how so??

Answer 10

the answer is 5/3,,, but i don't see how to get there from 1= -2/3(1) + b

Answer 11

add 2/3 on both sides

Answer 12

oh duh u add,,, i was multiplying

Answer 13

1+2/3 = -2/3 +2/3 +b
.....
yes.

Answer 14

sigh,,,, ok tyvm!!!

Answer 15

welcome ^_^