C segmentation fault with array

I am writing my code chunk by chunk and trying to use pointer arithmetic in the process. My code calls a function and then is suppose to ask the user for 8 numbers. This then stores the numbers into the array using pointers. My problem is that I run into a segmentation fault. I believe the issue has to do with my pointer and the addresses. The chunk of code I think is causing this issue is scanf("%lf", *(coeff+1));. Is this the area that is throwing the fault and if so, what is the way to fix this?

#include <stdio.h>

void get_poly(double *coeff){

  int p;

  printf("Enter the eight coefficients: ");
    for(p = 0; p < 7; p++){
      scanf("%lf", *(coeff+1));
    }
}

int main(void){

  int i;
  double coeff[7];

  get_poly(coeff);

  printf("output");
    for(i = 0; i < 7; i++){
      printf("%lf",coeff[i]);
   }  
  return 0;
}