Can you please help with some math.. calling math lovers,

1.Is the relation below also a function?{(-3, 6), (2, 3), (3, -5), (8, -2)}

7. Find the average rate of change for f(x) = -2x + 6 from 1 to 3
and the equation of the secant line containing (1, f(1)) and (3, f(3)). Please show all of your work.

11.Please be sure to show all of your work.
F(x)= sqrt x
Shift down 6 units, reflect about the y-axis, and shift right 2 units.

1. Yes all the x-coordinates are different.

2. Rate of change= f(3)- f(1)/ 3-1

=(0 - 4)/(3-1)=-4/2 = - 2

3.Shift down the it is sqrt(x) - 6

reflects about y-axis the it is sqrt(-x) -6

Shifts right 2 units it becomes sqrt(-x+2) - 6

The new function

G(x)=sqrt(-x+2) - 6

do ur own home work dam it