Approximate the area between the x xx-axis and g ( x ) = 2 x g(x)=2 x g, left parenthesis, x, right parenthesis, equals, 2, start superscript, x, end superscript from x = − 2 x=−2x, equals, minus, 2 to x = 2 x=2x, equals, 2 using a trapezoidal sum with 4 44 equal subdivisions.