You are given an array coordinates, coordinates[i] =[x, y], where[x, y] represents the coordinate of a point. Check if these points make a straight line in the XY plane.

**Example 1:**

**Example 1:**

package Solution

funcSolution(xbool)bool {

funcSolution(coordinates [][]int)bool {

dx0:=coordinates[1][0]-coordinates[0][0]

dy0:=coordinates[1][1]-coordinates[0][1]

fori:=1;i<len(coordinates)-1;i++ {

dx:=coordinates[i+1][0]-coordinates[i][0]

dy:=coordinates[i+1][1]-coordinates[i][1]

ifdy*dx0!=dy0*dx {

}

}

}

cases:= []struct {

}{

{"TestCase",true,true},

{"TestCase",true,true},

{"TestCase",false,false},

{"TestCase", [][]int{{1,2}, {2,3}, {3,4}, {4,5}, {5,6}, {6,7}},true},

{"TestCase", [][]int{{1,1}, {2,2}, {3,4}, {4,5}, {5,6}, {7,7}},false},

}