Give the equation of the lineofbestfit trend line the slope

Give the equation of the line-of-best-fit (trend line), the slope of this line, and explain what the slope means in the context of this problemy=4.15x+45.361 The slope is 4.15 Please help explain what it means.

The interpretation of slope is that: on one unit increase in x, the expected increase in predicted value of y is 4.15 (which is regression\'s slope)