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 \( y = 2x \).

Step2: Substitute x = 15

To find the y - coordinate when \( x = 15 \), substitute \( x = 15 \) into the equation \( y = 2x \). So \( y=2\times15 \).

Step3: Calculate the value

\( 2\times15 = 30 \).

Answer:

30