If D + E = 7, and 2D + 2E + 8J = 19, then what is J?

5/8 or 0.625

Step-by-step explanation:

2D+2E is als equal to D+E+D+E and D+E=7 so 2D+2E=14.Then subtract 14 from both sides so it would be 8J=5 and divide by 8 and J=5/8.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.