Multiple plots (hold on) in MATLAB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to plot two lines on the same figure.

MATLAB

x = 1:5;
y = x.^2;
plot(x, y);
hold [1];
y2 = x.^3;
plot(x, y2);

Drag options to blanks, or click blank then click option'

Aclear

Bon

Coff

Dall

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'hold off' erases the previous plot before drawing the new one.

Using hold on allows multiple plots on the same figure without erasing the previous plot.

2fill in blank

medium

Complete the code to plot a sine and cosine on the same graph.

MATLAB

x = linspace(0, 2*pi, 100);
plot(x, sin(x));
hold [1];
plot(x, cos(x));

Drag options to blanks, or click blank then click option'

Aoff

Bclear

Con

Dreset

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'hold off' causes the first plot to disappear.

hold on keeps the first plot so the second plot appears on the same axes.

3fill in blank

hard

Fix the error in the code to plot two lines without erasing the first.

MATLAB

x = 0:0.1:1;
plot(x, x);
hold [1];
plot(x, x.^2);

Drag options to blanks, or click blank then click option'

Aon

Boff

Cclear

Dhold

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'hold off' erases the first plot.

The correct command is hold on to keep the first plot visible.

4fill in blank

hard

Fill both blanks to plot three lines on the same figure.

MATLAB

x = 1:4;
plot(x, x);
hold [1];
plot(x, x.^2);
hold [2];
plot(x, x.^3);

Drag options to blanks, or click blank then click option'

Aon

Boff

Chold

Dclear

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'hold off' before the second plot clears previous plots.

Using hold on before the second plot keeps the first plot visible, and hold off before the third plot releases the hold so the third plot replaces the previous plots.

5fill in blank

hard

Fill all three blanks to create a figure with multiple plots and then release hold.

MATLAB

x = 0:pi/4:2*pi;
plot(x, sin(x));
hold [1];
plot(x, cos(x));
hold [2];
plot(x, tan(x));
hold [3];

Drag options to blanks, or click blank then click option'

Aon

Boff

Chold

Dclear

Attempts:

3 left

💡 Hint

Common Mistakes

Not turning hold off at the end causes all future plots to overlay.

Use hold on to add plots without erasing, then hold off to release hold.