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

the teacher gave this pattern to the class; the first term is 5 and the rule is add 4, subtract 1. each student says one number. the first student says 5. victo
what is 67/100 as a decimal
Air spaces are used in insulation because _____. air is a good conductor air is a poor conductor air is light air is colorless User: What will happen as an obje
17 over 50 as a decimal
Which of the following is true about imprinting? a. It is often used in the training of adult animals. b. It is restricted to birds. c. It always involves th
What best defines mercantilism?
Define extortion. a. to pay a fine b. to politely ask c. to obtain by force d. to ask for money
How do you destroy data on hard drive?
When one group controls an industry or market by being the only provider, this is called _____.
Lee's vacation is in 34/7 weeks.Which shows the number of weeks until Lee's vacation written as a fraction greater than one?