Question

graphing linear equations
vectored instruction
equation:
y = 2x
identify the
y-coordinate.
(15, ?)
assume this is a point
on the graph of y = 2x.

Explanation:

Step1: Recall the equation

The equation of the line is \( y = 2x \). We need to find the \( y \)-coordinate when \( x = 15 \).

Step2: Substitute \( x = 15 \) into the equation

Substitute \( x = 15 \) into \( y = 2x \), so \( y = 2\times15 \).

Step3: Calculate the value of \( y \)

\( 2\times15 = 30 \).

Answer:

30