Translate the phrase into an algebraic expression.
The quotient of w and 4

The equation is y= -5/2x + (-10)
To find the y-intercept you use the equation.
y= -5/2x + b
You substitute y with the y value which is 5 and x with the x value which is -6. You multiply -5/2 by -6 which gives us 30/2 which equals to 15. Then you subtract 15.
5= -5/2(-6) + b
5-15  =  15 - 15      
b= -10
The slope is -5/2 and the y-intercept is -10

So the equation of the line is y= -5/2x + (-10)
Hope this helps, please mark brainliest!