In evaluating a double integral over a region , a sum of iterated integrals was obtained as follows:

Sketch the region and express the double integral as an iterated integral with reversed order of integration.

Find a, b, g1(x), and g2(x).

I said a was 0 b was 7, g1(x) was 7 and g2(x) 0

but thats not correct so what next?