how do you write an equation for a line?

Question

im doing my math home work and i forgot how to write an equation for a line

Answer 1

Equation for a straight line is written in the standard form as follows:

y = mx + c where y and x are the coordinates, m is the slope and c is the intercept. Some people use b instead of c but it means the same.

Good luck.

Answer 2

y = mx + c

m = gradient, eg if it goes up 1 for every 1 across m=1, or if it goes up 2 for every 1 across m = 2, if it goes across 2 for every 1 up, m=0.5

c = where it crosses the y-axis, eg if it crosses at -5, it is -5, if it crosses at 46, it is +46.

good luck!!

Answer 3

ax + by + c = 0 --> general formula
y = mx + C --> slope-intercept formula
x/a + y/b = 1 --> intercept formula
y-y' = m(x-x') --> slope-one point formula
(y-y2)/(y2-y1) = (x-x2)/(x2-x1) --> two point formula
xcosθ + ysinθ = 1 --> polar formula.

need more?

Answer 4

the ecuation for a line is: y = mx + b; where m=slope and b=Y axis intercept.

Answer 5

y=mx+c where m is the slo of the line and c is the y intercept

Answer 6

y = mx + b, where m is the slope and b is the y-intercept, (0,b).

Given any two points on the line, (x1,y1) and (x2,y2), the slope is m = (y2-y1)/(x2-x1).