Which statement correctly describes the relationship between the graph of f(x) and the graph of g(x)=f(x)-1?

g(x) is the graph of f(x) translated 1 unit down, parallel to the y-axis

given f(x) then f(x) ± c

translates f(x) by c units vertically up if c is positive and

translates f(x) by c units vertically down if c is negative

here f(x) - 1 ← move down vertically by 1 unit

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).

0lz try yourself sorry for not answering