Question

what is the formula to find line equation ?

Answer 1

given 2 points?

Answer 2

ye @dockworker ?

Answer 3

point-slope form
\[y-y_{1}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}(x-x_{1})\]

Answer 4

\[m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]
the slope

Answer 5

thank u @dockworker can u pleaseanswer some more questions for me ?

Answer 6

ok

Answer 7

ok so first question is

write the equation for the locus of points:

4 units from the point ( 1,-4) @dockworker ?

Answer 8

this will be a circle with radius 4

Answer 9

\[(x-1)^2+(y+4)^2=4^2\]equation of circle with center (h,k) is
\[(x-h)^2+(y-k)^2=r^2\]
in this case, equation is:

Answer 10

you are asking me what the equation is? @dockworker ?

Answer 11

its the top line, i meant to put it on the bottom but the website put it at the top

Answer 12

(x-1)^2+(y+4)^2=4^2