Answer:
10x + 50 = 90; 4 hours
Step-by-step explanation:
Let
x -----> the number of hours
y ----> the total charge
we know that
The total charge is equal to the number of hours multiplied by the rate of $10 per hour plus a flat fee of $50
so
The linear equation that represent this problem is
For y=$90
substitute in the equation and solve for x
Subtract 50 both sides
Divide by 10 both sides
therefore
10x + 50 = 90; 4 hours
Answer:
left limit = 2 ≠ 1/2 = right limit
Step-by-step explanation:
A function is discontinuous if the limit of the function value approaching the point from the left is different than the limit approaching from the right.
Here, the left limit is 2 and the right limit is 1/2. The limits are different, which is why the function is discontinuous at x=-1.
