Y - y1 = m( x - x1); where m = (y2 - y1)/(x2 - x1); We have m = (6-0)/(7-5) = 6 / 2 = 3 ; The equation of the line is: y - 0 = 3(x-5); Finally: y = 3x - 15.
Since the given hypotenuse is 6.5 and one of the lengths is given as 6, we can use the equation a^2 +b^2 =c^2 to solve this. Plugging the numbers in, it would now be 6^2+b^2 =6.5^2, which would give you 36+b^2=42.25. Now, all you need to do is solve. Subtract 36 from 42.25, which will result in 6.25. Now, the equation is at b^2=6.25. All you need to do now is find the square root of 6.25, which would be 2.5, therefore giving you your answer.