How can I produce a plot like the one in the picture using quadratic equation in MATLAB?

Answer 1

[Star Strider]

I have no idea what the picture demonstrates.

Perhaps something like this —

a = randn

a = -1.4245

b = randn

b = -0.7669

c = randn

c = 1.2477

r = roots([a b c])

r = 2×1

-1.2430 0.7047

fcn = @(x) a*x.^2 + b*x + c;

xinterval = [-10 10];

figure
fimplicit(fcn, xinterval, 'DisplayName','Function Roots')
yl = ylim;
hold on
fplot(fcn, xinterval, 'DisplayName','Function Plot')
hold off
ylim(yl)
grid
legend('Location','best')

.