I forget how to do this. Can someone help?

Which of the following is true for the relation f(x)=2x^2+1

Find the slope of the line passing through a pair of points

Can someone plz me understand how to do these. plz, show work.in exercises 1-4, rewrite the expression in rational exponent form.[tex]\sqrt[4]{625} \sqrt[3]{512} (\sqrt[5]{4} )³ (\sqrt[4]{15} )^{7}\\ (\sqrt[3]{27} )^{2}[/tex]