Keeping the properties of exponents in mind, to what power must you raise the expression to get 7 as the result? Hint: Use the property (am)n = amn.

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

Ibelieve that c. recording would work best.