So we can do anything to the equation as long as we do it to both sides f+0.3<1.7 subtract 0.3 from both sides f+0.3-0.3<1.7-0.3 f+0<1.4 f<1.4 so f is less than 1.4 not including 1.4 a number line would have a dot that is NOT filled in on 1.4 and then from that dot, it would go in the negative direction forever (normally to the left)
Answer: y=x The slope of the perpendicular line is the opposite reciprocal. So you do -(-1/1) which equals 1. So now we have y=x+b. Plug (3,3) into this and you get 3=3+b. So b=0 and the equation is y=x