1. This graph represents a relation Which set of ordered pairs is included
in this relation?
A. {(9.-3). (4,-2), (0,0), (1,1)}
B. {(-3,9). (-2,4), (0,0), (1,1)}
C {(-9,3), (-4,2), (0,0), (1,1)
D. {(3.-9), (2,-4), (1,-1), (0,0)}

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

What is a correct first step in solving the inequality-4(3-5x)> -6x+9