Plotting a graph of y for a given value of x

Please I've been trying to plot the graph above but I'm finding it difficult.. please can someone help

[dpb]

Let's see your work to date and a specific Q? where you got stuck...

Answer 1

[henry tochukwu]

x= [1 2 3 4 5 6 7 8 9 10]; 
x= [-5:20:5]; 
y= [(5 * sin(x))/ (x + exp(-0.75x))]-(3*x)/5
plot(x,y) 

This is the one I did before

[dpb]

Your x vector doesn't match the range asked for in the problem -- why is that???

Look up times, .*, the "dot" operators for element-wise operations...

[henry tochukwu]

I'm not good at this sir... Just learning the basics.

[dpb]

Well, you only getter better by working at it -- just being handed solutions doesn't help the learning process nearly as much -- and learning to use the documentation is part of learning as well as is the precept that homework should be the student's effort.

We'll prompt and coach and answer specific Q?, but handing out complete homework solutions isn't the purpose of the forum and is rarely done -- at least until there's been significant effort shown to solve the problem.

Answer 2

[henry tochukwu]

x = [-5:1:10]; y = (5 * sin(x))/ (x + exp(-0.75*x))-(3*x)/5; plot(x,y,'.-'), xlabel('x-axis'), ylabel('y-axis'), grid on, axis equal

[dpb]

You didn't heed the instruction about "dot" operators -- mrdivide, / is NOT at all the same thing.

For a nicer-appearing plot (when you finally get the right values), you'll want more x values than what default colon spacing gives -- look at linspace for one alternative, or if it isn't precluded by the not-shown instructions on the homework assignment page, ezplot

Oh, and please format the code with the code button so it's readable/executable...