What is the answer to this 3(k−6)=15

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?