You seemed to have gotten the equation wrong, but don't worry I'll help you =================================================================== First you simplify the equation 4=<span><span><span>(-1)</span><span>(-3)</span></span>+b (A negative times a negative is a positive) </span>4 = 3 + b (Flip the equation) b + 3 = 4 -------------------------------------- Then you subtract 3 from each side <span><span>b+3-</span>3</span>=<span>4-3 </span>b = 1 is your answer =================================================================== y = -1x - 7 is wrong as well To find the answer just add -4 on each side for y+4=-<span>1<span>(x-3)</span></span> <span>y+4+-4</span>=-<span>x+3+-4 </span>y = -<span><span>x - </span><span>1 is the answer </span></span>To graph, plot points on Y-intercept of -1 and place another point at (-2,1)