Which function has an inverse that is also a function?
a. {(-4, 3), (-2, 7), (-1,0), (4,-3)(11,-7)}
b{(-4, 6), (2, 2), (-1, 6), (4, 2), (11, 2)}
c{(-4,5), (-2, 9), (-1,8), (4, 8), (11,4)}
d{(-4,4), (-2, -1), (-1,0), (4, 1), (11, 1)}

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.

answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it