<span>If you just divide -7 by 9 on a calculator you will get your answer
-0.77777777777</span>
It can be 8:12 or as a fraction it’s 8/12
You'd find the vertical asymptotes by seeing where the denominator equals zero; you can do so by factoring the denominator.
In this case, you can factor the denominator into (x+3)(x+2), so if you set each of those equal to zero you can find the equations of the vertical asymptotes (x=-3 and x=-2).
You divide both numbers by their largest common factor, which is 5 in this case.
15(/5):5(/5)
3:1
Area of TV screen = 15 x 20 = 300 square feet
Cost of TV screen cover = 25 cents per square foot
Cost to cover TV screen = 0.25 x 300 = $75
