Is the Point on the line?

Question 1:

Does the point
(-15,63)
lie on the line
y = −4x + 6
No

Question 2:

Does the point
(-26,-104)
lie on the line
y = 4x 0
Yes

Question 3:

Does the point
(30,120)
lie on the line
y = 4x 0
Yes

Question 4:

Does the point
(-16,60)
lie on the line
y = −4x − 4
Yes

Question 5:

Does the point
(15,-45)
lie on the line
y = −3x 0
Yes

Question 6:

Does the point
(-17,52)
lie on the line
y = −3x + 1
Yes