### Learning Math and Coding with Robots

 Grid: Tics Lines: Width px Hash Lines: Width px Labels: Font px Trace Lines: Robot 1: Width px Robot 2: Width px Robot 3: Width px Robot 4: Width px
 Axes: x-axis y-axis Show Grid Grid: 24x24 inches 36x36 inches 72x72 inches 96x96 inches 192x192 inches Quad: 4 quadrants 1 quadrant Hardware Units: US Customary Metric
 Background:

#### Robot 1

 Initial Position: ( in, in) Initial Angle: deg Current Position: (0 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 2

 Initial Position: ( in, in) Initial Angle: deg Current Position: (6 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 3

 Initial Position: ( in, in) Initial Angle: deg Current Position: (12 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 4

 Initial Position: ( in, in) Initial Angle: deg Current Position: (18 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

Graphing Linear Equations: Parallel and Perpendicular Lines
Problem Statement:
The pre-placed blocks plot a point on the grid and graph a linear equation. Add blocks to draw two more lines, one parallel and one perpendicular to the pre-drawn line, that contain the pre-drawn point on the grid. Each line should be drawn using a different robot.
```/* Code generated by RoboBlockly v2.0 */
#include <chplot.h>
CPlot plot;
double trackwidth1 = 3.69;
double trackwidth2 = 3.69;
double trackwidth3 = 3.69;

plot.point(7, 0);
robot1.traceOff();
robot1.traceOn();
robot2.traceOff();
robot2.traceOn();
robot3.traceOff();