Answer:
this is definitely talking about equation of a line .
using the formula
Y-Y1=m( X-X1)
Y-7=-2(x+4)
y-7=2x+8
y = 2x+8+7
y= 2x +15
2x-y+15=0
Square root of 27
Step-by-step explanation:
its linear and negative
hh(4)+tt(3)=30