Question

look at this graph:
write the equation of the line.

Explanation:

Step1: Identify the line type

The line is horizontal, so its slope \( m = 0 \).

Step2: Determine the y - intercept

A horizontal line has the equation \( y = b \), where \( b \) is the y - intercept. From the graph, the line passes through \( y = 50 \) (since it's halfway between 40 and 60, or we can see the y - value is constant at 50). So using the slope - intercept form \( y=mx + b \), with \( m = 0 \) and \( b = 50 \), we get \( y=0x + 50\), which simplifies to \( y = 50 \).

Answer:

\( y = 50 \)