Answer:On a graph, these values form a curved, U-shaped line called a parabola. All quadratic functions form a parabola on a graph. ... Quadratic functions are used to describe things with smooth symmetrical curves, like the path of a bouncing ball or the arch of a bridge.
Step-by-step explanation:
Answer:
centre (5,0)
radius:9
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1. )2.7
2.)8.875
3.)9.
4.)4.
