Here is the question, how do I interpret the slope?

l. A model t predicting preference for President in the US (Democrat, Republican, Independent) using x = annual income (in $10,000 dollars) is (g [(151) = 3.3 0.236 and OER/fa) = 1.0 + 0.3x. a. State the prediction equation for log (7%,; /frD). Interpret its slope