multiply 80 * 24, to get the total amount sold each day. divide by 10 to get the amount per hour.
solutions are imaginary
given equation is in the form of ax^2 + bx+c=0
a= 1 , b= 4 and c= 5
plug in the values
discriminant d = -4 that is negative
when discriminant is negative then the solutions are imaginary
d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp
f(x) = x²- 10x + 25
we can factor this.
what 2 numbers multiply to 25 and add to -10
-5 *-5 = 25
-5+-5 = -10
f(x) =(x-5) (x-5)
using the zero product property, we know that it will cross the axis at x=5
at 5 seconds f(x) =0. this means the height is zero at 5 seconds