MATLAB Graphics and Functions Quiz

What does the plot(x, y) function do?

• Plots a bar chart

• Creates a 3D surface plot

• Generates a table

• Displays a histogram

• Draws a line plot of vector data

Which of the following adds a grid to a plot?

• show grid

• display grid on

• grid on

• addgrid

• enable grid

How do you plot sine and cosine functions on the same axes?

• plot(x, y1); plot(x, y2)

• plot(x, y1 + y2)

• plot(x, y1, x, y2)

• dualplot(x, y1, y2)

• subplot(x, y1, y2)

Which function is used to create a bar chart?

• bar()

• plotbar()

• barchart()

• plot()

• bargraph()

What does subplot(2,1,1) do?

• Creates one big plot

• Divides the figure into 2 columns and 1 row

• Creates a plot in the top half of a 2-row figure

• Creates a second figure

• Splits the window vertically

What does saveas(gcf, 'plot1.png') do?

• Saves current figure to the workspace

• Exports code as an image

• Saves the current figure as a PNG file

• Copies the figure to clipboard

• Saves data in .fig format

Which keyword changes the line width in a plot?

• LineSize

• linewidth

• LineWidth

• line_width

• width

Which function adds a text label at a specific position in a plot?

• label()

• text()

• tag()

• annotate()

• caption()

What color does 'g--' represent in plot customization?

• Red dotted line

• Green dashed line

• Blue solid line

• Gray dash-dot line

• Green dotted line

What does the command axis([0 10 -1 1]) do?

• Sets axis labels

• Limits axes to specified ranges

• Shows major grid lines only

• Changes axis color

• Displays axes in 3D