hannahsoutherland22 hannahsoutherland22

18-04-2019
Mathematics

contestada

Given the function f(x) = 3x2 − 4, what is f(-2)?

A. -40
B. -16
C. 8
D. 32

Respuesta :

desperatesmile desperatesmile

18-04-2019

All this is asking you to do is plug in -2 for x

So

f(x)=3x²-4

f(-2)=3(-2²)-4

f(-2)=12-4

f(-2)=8

Answer Link

queensheep queensheep

18-04-2019

^^ correct! It would be 8! Your answer is C.

Answer Link

Otras preguntas

Please show reasoning

Reforms to ensure that women have the same rights and opportunities as men is the goal of

A moving electron has a kinetic energy of 3.79 ev. What is the wavelength of this electron (in m)?

The concept of reverse transcription was at first very controversial because it:_____.

Refer to the image please!

The two organ systems responsible for controlling other body systems are the____and__

Suppose we want to know whether students who attend a top business school have higher earnings. what is the null hypothesis?

Bringing to mind the information when you need it is referred to as _____ group of answer choices

The fed increases the quantity of money. in the short run, the quantity of money demanded ______ and the nominal interest rate ______.

The table shows three functions and their output values for different values of x. Which equation represents h(x)? h(x) = f(x) – g(x) h(x) = g(x) – f(x)