What is the value of x? 30
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O 45
T
(3x) °
O 55
-40
R
O 60
w
Intro

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

An equation where variables are used to represent known values—function notation true or false

How are sas and sss used to show that two triangles are congruent?