How do you find the x and y intercept of #x – 9y = – 45#?
Here it is
Hopefully, you have already learnt the equation of a line which states that
where m is the gradient (m = y/x) and c is the y-intercept. (and x and y the coordinates.)
Now arranging your equation into above mentioned format;
#y = (-x)/-9 +( -45)/-9#
Now you from this equation you can see that
SO OUR Y-INTERCEPT IS FOUND WHICH IS 5.
Now for finding x-intercept then y coordinate must be equal to ZERO.
So we put the equation equal to ZERO, like this:
SO at -45 the line intersects the x-axis.
SO OUR X-INTERCEPT EQUALS TO -45.