Finding Parallel Lines by Comparing Slopes to y=2x+7

Published on March 18, 2026

Algebra

This problem requires finding which graphed line (A-F) is parallel to the line y=2x+7 by matching the target slope of 2 to the slopes calculated from the coordinates on the graph.

Question

Answer

The problem asks to identify all lines among A to F that are parallel to the line given by the equation .
Step 1: Determine the slope of the given line.
The equation of the given line is in the slope-intercept form, , where is the slope and is the y-intercept.
For the line , the slope is .
Step 2: Understand the condition for parallel lines.
Two lines are parallel if and only if they have the same slope. Therefore, we need to find the slope of each line A through F and see which one equals 2.
Step 3: Calculate the slope for each line A to F using points from the graph.
The slope between two points and is calculated as:
We will find two clear points for each line.
Line A (Blue):
Points on Line A: and .
Line B (Purple):
Points on Line B: and .
Line C (Orange):
Points on Line C: and .
Line D (Teal/Light Green):
Points on Line D: and .
Line E (Green):
Points on Line E: and .
Line F (Gray/Black):
Points on Line F: and .
Step 4: Compare the slopes with the target slope ( ).
  • •Slope of Line A:
  • •Slope of Line B:
  • •Slope of Line C:
  • •Slope of Line D:
  • •Slope of Line E:
  • •Slope of Line F:
The only line with a slope of 2 is Line B.
Answer:
The line parallel to is Line B.