Find P(5) given P(x) = 4 - 1

Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?