Quadratic Functions: Factored Form — Unit test

Question 1

The graph of the function f(x) = (x − 3)(x + 1) is shown.

Revolt · Accepted Answer

all real values of x where x < −1

Question 2

Where are alkaline earth metals found on the periodic table?

Revolt · Accepted Answer

Group 2

Question 3

Rutherford used positively charged particles to investigate the structure of the atom. The results surprised him, and he developed the atomic model shown below.

Revolt · Accepted Answer

A few positive particles bounced back because they were pushed away from the positive center.

Question 4

An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. Which is the best conclusion that can be drawn?

Revolt · Accepted Answer

The atom has 7 neutrons and 8 protons.

Question 5

Isra is analyzing the properties of several samples of elements to find out which sample is a metalloid. Which set of properties most likely belongs only to a metalloid?

Revolt · Accepted Answer

has a high luster and is very brittle

Question 6

What is the y-intercept of the quadratic functionf(x) = (x – 8)(x + 3)?

Revolt · Accepted Answer

(0,–24)

Question 7

Who was the first chemist to organize elements by atomic number?

Revolt · Accepted Answer

Henry Moseley

Question 8

The function f(x) = (x − 4)(x − 2) is shown.

Revolt · Accepted Answer

all real numbers greater than or equal to −1

Question 9

Which is the property of nonmetals to evaporate easily?

Revolt · Accepted Answer

volatile

Quadratic Functions: Factored Form — Unit test Answers

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