Question

write the canonical equation of the straight line that goes through the points A(0,3) and B(4, -4).

Answer 1

find the slope \[M = \frac{ -4-3 }{ 4-0 }\] which equals -7/4

Answer 2

you can use the points given to find the equation of the line... using the equation (y-y1)=m(x-x1) if you use point A(0,3) your equation would look like
y-3=-7/4(x-0)
then use algebra to put it in whatever form you want, I like point slope form because its easy to manipulate.

Answer 3

would you mind telling me how will it look like in the slope form?

Answer 4

y=-7/4x +3