8.2 Function Notation and Graphing Non-Linear Functions

Question 1

F(2)=-1. What does this mean?

Answer 1

That the line masses through (2,-1)

Question 2

Define square root

Answer 2

the opposite of squaring a number. √a is used to denote the posititve, or principal square root of a nonnegative number a .

Question 3

f(x)=x^2 is what kind of graph

Answer 3

A parabolic. Anything squared creates a parabolic graph.

Question 4

f(x)=|x| is what kind of graph

Answer 4

a v-shaped graph. When theres absolute value involved, we know where this is gonna go!

Question 5

f(x)=√x is what kind of graph?

Answer 5

Its one of those one directional, starting at a point on the y axis, lines
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like this ./

but more curved