Which statements are true about this equation? y=−(x+4)2−2
1. The domains is all real numbers
2. The vertex is (-4,-2)
3. The range is y≤−2
4. The axis of symmetry is y=-2

The vertex is (-4,-2)

Step-by-step explanation:

step-by-step explanation: s

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).