how can i find the x Value

I have this three line code, how can i define "x" value

part1 = @(x) (x >= 5).*(10*sqrt(x) + 25);
part2 = @(x) (x >= 0 & x <= 4).*(10*x + 25);
part3 = @(x) (x < 2) .*25;

Answer 1

[Star Strider]

One option is linspace —

x = linspace(-25, 25, 250);

part1 = @(x) (x >= 5).*(10*sqrt(x) + 25);
part2 = @(x) (x >= 0 & x <= 4).*(10*x + 25);
part3 = @(x) (x < 2) .*25;

figure
plot(x, part1(x))
hold on
plot(x, part2(x))
plot(x, part3(x))
hold off
grid
legend('part1','part2','part3', 'Location','best')

.