Question

Evaluating Equations with One Unknown

Loops can be constructed to give you a way to determine and display the values of a single unknown in an equation for a set of values over any specified interval. For example, suppose you want to know the values of y in the following equation for x between 2 and 6: y = 10x²+ 3x – 2

Write a C++ program for this example.

Assuming x has been declared as an integer variable, use for loop to calculate the y value for each x between 2 and 6. Output your results. y = 10 * pow(x,2.0) + 3 * x – 2; //code for calculating y value for each x cout << setw(4) << x << setw(11) << y << endl; //code for output each x and y

Answer 1

`Hey,

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#include <iostream>
#include<iomanip>
#include<cmath>
using namespace std;

// Driver program
int main()
{
for(int x=2;x<=6;x++)
{
int y = 10 * pow(x,2.0) + 3 * x-2; //code for calculating y
cout << setw(4) << x << setw(11) << y << endl; //code for output each x and y
}

}

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