Use the shortcut rules to mentally calculate the derivative of the given function. f(x) = 7x4 f' ( x ) =Use the shortcut rules to mentaHy calculate the derivative of the given function. f(x) = 3X4 + 2X3 3 Use the shortcut rules to mentaHy calculate the derivative of the given function. f(x)=x+i+1 X Obtain the derivative dy/dx. y= X - 5 dy = dx State the rules that you use. (Select all that apply.) O power rule O constant multiple rule O sum rule O difference ruleFind the derivative of the function. HINT [See Examples 1 and 2.] 900 = 5X_1 + fix2 g'iX) = \fObtain the derivative dy/dx. y = 10 dy = dx State the rules that you use. (Select all that apply.) O power rule O difference rule O sum rule O constant multiple rule