Question

Gradien garis y=2x+9 adalah

Answer 1

y= mx + c
y= 2x + 9

maka m = 2

Answer 2

Y=2x+9
Titiknya: misal x=0 -> y=9
(x1,y1) = (0,9)

y=0 -> x -9/2
(x2,y2) = (-9/2,0)

m = y2 - y1
----------
x2 - x1

= 0 - 9
----------
-9/2 - 0

= -9
-----
-9/2
= 2