in which table does y vary directly with x?

Table D

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Verify each case

Table A

For x=1, y=3

Find the value of k

----->

For x=2, y=9

Find the value of k

----->

the values of k are different

therefore

The table A not represent a direct variation

Table B

For x=1, y=-5

Find the value of k

----->

For x=2, y=5

Find the value of k

----->

the values of k are different

therefore

The table B not represent a direct variation

Table C

For x=1, y=-18

Find the value of k

----->

For x=2, y=-9

Find the value of k

----->

the values of k are different

therefore

The table A not represent a direct variation

Table D

For x=1, y=4

Find the value of k

----->

For x=2, y=8

Find the value of k

----->

For x=3, y=12

Find the value of k

----->

All the values of k are equal

therefore

The table D represent a direct variation or proportional relationship

The linear equation is

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3