The function g(b) = 2b + 3 is a linear equation, which means it represents a straight line when graphed on a coordinate plane. In this equation, b is the independent variable, and g(b) is the dependent variable. The coefficient 2 indicates the slope of the line, showing that for every increase of 1 in b , g(b) increases by 2. The constant 3 represents the y-intercept, which is the value of g(b) when b is 0. To find the value of g(b) for any given b , simply substitute the value of b into the equation. For example, if b = 1 , then g(1) = 2(1) + 3 = 5 . This means that when b is 1, the