Chelsea painted 1/4 of her bedroom and 3/7 of an hour at this rate how long will it take her to paint the entire room

it took 3/7 to do 1/4 of her room

 so multiply 3/7 x 4 to get total

 turn 4 into a fraction 4/1

 so 3/7 x 4/1 = 12/7  hours = approximately 1.71 hours

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