find the eqaution of the straight line with the gradient 0.5 and passing through the point (3, 4)
m = 0.5
x = -1
y = 10
y=mx+b
(-10) = (0.5)(-1) + b
-10 = -0.5 + b
b = -9.5
therefore my answer would be y = 0.5x - 9.5
but the answer is y = -4x-1
Dockers_Girl wrote:find the eqaution of the straight line with the gradient 0.5 and passing through the point (3, 4)
m = 0.5
x = -1
y = 10
Dockers_Girl wrote:b)through (2,5) and (6,9)
my working out:
-1-9/0-2 = -10/-2 = -5