y = 4x (3,12)
The equation
𝑦
=
4
𝑥
y=4x represents a linear function. To check if the point
(
3
,
12
)
(3,12) lies on this line, substitute
x=3 into the equation:
y=4(3)=12
Since the calculated
y-value matches the given point's
y-coordinate,
(3,12) is on the line
y=4x.
