∵ The form of the linear equation is y = m x + b, where
→ m is the slope of the line
→ b is the y-intercept
∵ The equation is
→ Compare it by the form of the equation above to find the values of m and b
∴ b = -4
∴ m = -3/8
∵ m is the slope
∴ The slope of the line is -3/8