The average cost in dollars of producing x units of golf clubs is C(x)=x^2-18x+140. Determine the number of golf clubs to produce each hour to keep the cost below $75 per club

At least 6

Step-by-step explanation:

I did guess and check for the formula. I first started with 5 golf balls

C(x)=5^2-18*5+141

C(x)=76 too high

Then I tried 6

C(x)=6^2-18*6+141

C(x) = 69

It would have to be 6 because you need a whole number of golf balls and 5 made the cost too high

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: