Me asap how many points of intersection are there between line a and line b if they contain the points listed? line a: (–4, 9) and (0, –3) line b: (4, –9) and (0, 3) a. zero b. one c. two d. infinite

Zero

Step-by-step explanation:

Lest find the slope for both lines

Using the equation for slopes

m= (y2 - y1) / (x2 - x1)

Where (x2,y2), (x1,y1) are given points from the lines

m1= (-3-9) / (0- (-4)) =-3 (slopes for line A)

m2= (3-(-9)) / (0-4) =-3 (slope for line B)

We realize that the line have the same slope, but they have not the same points, so, the lines are parallels and can not touched each other.

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).