math
posted by Don .
I need help with
write the equation of the line which contains the point (0,negavtive 3),
or written ars(0, 3)
and whose slope is 4.
if you want the equation in the form
y = mx + b
sub in 3 for y, 4 for m, and 0 for x
for
3 = 4(0) + b
so b = 3
equation: y = 4x 3
We could have noticed that (0,3) is the yintercept and have directly into
y = 4x  3
using the formula, y  (3) = 4(x0)
so y + 3 = 4x
y = 4x  3
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