Use the function rule to complete the table -10x+y=4

-10x+y=4

u just need to plug in values of x in function to get y values
x=-2

-10(-2)+y=4
20+y=4
y=-16

-10x+y=4
x=-1
-10(-1)+y=4
10+y=4
y=-6

-10x+y=4
 at x=0
-10(0)+y=4
y=4
u are getting y values according to x values

y=-16 at x=-2
y=-6 at x= -1
y=4 at x=0

next u can find

Just plug the numbers in the table into your formula and solve for X