Solve this system of equations:
y = x2 – 3x + 12
y = –2x + 14

4. Substitute the values of x, –1 and 2, into either original equation to solve for the values of y.
What are the solutions of the system of equations?
One solution is (–1,
The second solution (2

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?