(pythagoras theorem | year 9)

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4