X 2 4 6 8 Y 10 20 30 40
the table shows a proportional relationship between x and y. what is the unit rate of y per x

A 1

B 2

C 4

D 5

The correct answer is D, 5

Step-by-step explanation:

If the table represents a proportional relationship between our values x and y, we can find our function.

From our constants in x, the increase is a product of x by 5 to result in y's value. Therefore, the constant unit rate of y per x is 5.

the first question mark is 6 and the second question mark is 26 (the square root)

step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2