### 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: Horizontal and Vertical Lines
Problem Statement:
The pre-placed block plots a point on the coordinate grid. Use drivexyTo( ) blocks to move the robot and trace a vertical line and horizontal line that both go through the point. The vertical line should start from y = -12 and go to y = 24, and the horizontal line should start at x = -12 and end at x = 24. Remember to turn trace OFF when moving between points where you do not want to trace a line on the grid.
```/* Code generated by RoboBlockly v2.0 */
#include <chplot.h>
CPlot plot;
double trackwidth = 3.69;

plot.point(6, 18);
robot.traceOff();
robot.traceOn();
robot.traceOff();
robot.traceOn(); 