EmpyrealBlue
EmpyrealBlue EmpyrealBlue
  • 02-09-2016
  • Mathematics
contestada

Evaluate f(x) = -2x² -4 for x=3

A. -10
B. 10
C. -18
D. -22

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 02-09-2016
f(x) = - 2 x² - 4 for x = 3

f(3) = - 2*3² - 4

f(3) = -2*9 - 4

f(3) = -18 -4

f(3) = -22

Answer D

hope this helps!
Answer Link
SyntaxError
SyntaxError SyntaxError
  • 02-09-2016
[tex]f(x) = -2x^2-4 \\ f(x) = -2(3)^2-4 [tex][plug in 3 into your x value][tex]\\ f(x)=-18-4[tex] [3 squared equals 9. Now multiply 9*(-2) = -18[tex]\\ f(x)=-22 [ -18-4][/tex]
Answer Link

Otras preguntas

Who is Albert Einstein?
What is an ariel perspective?
If one body is positively charged and another body is negatively charged, free electrons tend to A. remain in the positively charged body. B. move from the nega
why is dung brown could u tell me
How to make a mountain out of small wooden sticks?
What was the goal of President Truman’s policy of containment?
Social networks like facebook, twitter, youtube and whatsapp are frequently used all over the world by people of differing genders, age, colour, race or creed.
Which word or phrase below best described how the Free Press organization believes the power of the media should be distributed. a. corporate domination c. el
Why was the Soviet Union able to prevent Germany from advancing toward Moscow?
How do you divide can someone plz tell me