The image shows a geometric representation of the function f(x) = x2 – 2x – 6 written in standard form.

An algebra tile configuration. Only the Product spot is shown. 9 tiles are in the Product spot: 1 + x squared, 2 negative x, 6 negative.

What is this function written in vertex form?

f(x) = (x –1)2 – 7
f(x) = (x +1)2 – 7
f(x) = (x –1)2 – 5
f(x) = (x +1)2 – 5

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph

the answer to your question is b.

answer is 1

step-by-step explanation:

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x