Answer:
D
Step-by-step explanation:
D is the only option where there's always 0 or positive integers inside the radical. The square root of a negative number is imaginary.
Slope = 3
The formula for calculating the slope is expressed as:
m = y2-y1/x2-x1
From the coordinate, x1 = 0 y1 =0 x2 = 5, y2 =15
m = 15-0/5-0
m = 15/5
m = 3
Hence the slope is 3
Answer: (n2+1) (n+1) (n-1)
Is it a multiple choise?
by 5:
÷ 
which is: × 
= 