Answer:
This code or is program to find a given value of derivative of  a polynomial. 
Step-by-step explanation:
We know already how to apply or make the procedures mathematically talking so this short program will eventually help you how to find logic. 
// libraries
#include <stdio.h>
#include <conio.h>
//use to control floating elements
float poly(float a[], int, float);
//main
int main()
{
// Enter the degree of polynomial equation
 float x, a[10], y1;
 int deg, i;
 printf("Enter the degree of polynomial equation: ");
 scanf("%d", °);
 printf("Ehter the value of x for which the equation is to be evaluated: ");
// Enter the coefficient of x to the power
scanf("%f", &x);
 for(i=0; i<=deg; i++)
 {
  printf("Enter the coefficient of x to the power %d: ",i);
  scanf("%f",&a[i]);
 }
// The value of polynomial equation for the value of x
 y1 = poly(a, deg, x);
  
 printf("The value of polynomial equation for the value of x = %.2f is: %.2f",x,y1);
  
 return 0;
}
/* function for finding the value of polynomial at some value of x */
float poly(float a[], int deg, float x)
{
 float p;
 int i;
  
 p = a[deg];
  
 for(i=deg;i>=1;i--)
 {
  p = (a[i-1] + x*p);
 }
  
 return p;
}