Learning Math and Coding with Robots

Linkbot Image Mindstorm Image Cursor Image
0x2418126-6-12y2418126-6-12
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: Background Image

Robot 1

Linkbot
Mindstorm
Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (-5 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Robot 2

Linkbot
Mindstorm
Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (6 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Robot 3

Linkbot
Mindstorm
Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (12 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Robot 4

Linkbot
Mindstorm
Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (18 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Find the Proportionality Constant of a Linear Equation
Problem Statement:
In this activity you will determine the proportionality constant of a linear equation. The board blocks will display two points on the grid. Change the values of 0 in the blocks to graph the line through these points. Then run the program to see if your graph is correct and answer the question. Use the graph to determine the proportionality constant for the proportional relationship between x and y.
/* Code generated by RoboBlockly v2.0 */
#include <linkbot.h>
double y;
double x;
double variable;
CLinkbotI robot;
double radius = 1.75;
double trackwidth = 3.69;

// Sample answer for points (0, 0) and (6, 6):
y = 1 * x;
// The slope of the line is 1:
robot.traceOff();
robot.drivexyTo(-5, 1 * -5, radius, trackwidth);
robot.traceOn();
for(x = -5; x <= 10; x++) {
  y = 1 * x;
  robot.traceColor("#00FFFF", 4);
  robot.drivexyTo(x, y, radius, trackwidth);
}
printf("For the graph of the line through the two points shown, what is the constant of proportionality for the proportional relationship between y and x? (Round to three decimal places)"+"\n");
scanf("%lf", &variable);
Blocks Save Blocks Load Blocks Show Ch Save Ch Workspace
Problem Statement:
In this activity you will determine the proportionality constant of a linear equation. The board blocks will display two points on the grid. Change the values of 0 in the blocks to graph the line through these points. Then run the program to see if your graph is correct and answer the question. Use the graph to determine the proportionality constant for the proportional relationship between x and y.

		
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