Hi please help with a and b!!

In Figure (a) below, a 11.61 V battery is connected to a resistive strip that consists of three sections with the same cross-sectional areas but different conductivities. Figure (b) gives the electric potential V(x) versus position x along the strip. The horizontal scale is set by Xs = 8.40 mm. Section 3 has conductivity 3.023 x 107 ((.m) 1. What is the conductivity of section (a) 1 and (b) 2? x=0 X= XS (a) V (V) 2 3 O EX's ( b ) x (mm) (a) Number i 6.046 Units ( 52.m) ^- 1 V (b) Number i 0.751 Units ( 52.m) ^ - 1