Write equation in slope intercept form and then find slope (m) and y intercept (b)

Question

Of corresponding line : 7x + 9y-7 =-9

Answer 1

You must change the equation into y = mx+b form

where m is the slope and b is the y intercept.

7x + 9y - 7 = -9

 

move all but 'y' to the right side

9y = -7x +7 - 9

    = -7x -2

 

divide by 9

y = -7x/9 -2/9

  = (-7/9)x -2/9

 

so compare to y = mx +b

and you can find the slope and intercept