If f (x)=-9/17x, what is the value of f(4), to the nearest thousandth (if necessary)

they charge the same amount at 20 minutes.

step-by-step explanation:

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this