#include <iostream> #include <iomanip> using namespace std; int main() { double x, y, a, b, xn = 1, xk = 5, step = 0.5; //40 не подходит cout << "Task 250"<< endl; cout << "y = a * x^2 + b (a = 3; b = -5)" << endl; cout << "| x | y |"<< endl; for (x = xn; x <= xk; x += step) { a = 3; b = -5; y = a * (x * x) + b; cout << setw(8) << x << setw(12) << y << endl; } }