the equation would start off like this. y=53x then plus or minus whatever your y-intercept is. to find this make a graph and plot the points (-6,-12) and whatever number the line lands on the Y AXIS that’s your Y intercept. if it’s a negative number you would write....
EXAMPLES: y=53x + 7
^ this is if your y intercept is possitive
y=53x -7
^ if your y intercept is negative.
hope this helps!