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 graph shows the high temperature on July 4th over a 15-year period.
How do lawyers prepare for a trial? Arraignment O Plea bargain O Discovery O Sharing information
The Basic premise of____is that objects can be tagged, tracked, and monitored through a local network, or across the Internet. The basic premise of a. artificia
What is the volume of this composite solid?
Suppose that we want to estimate the effects of alcogol consumption (alcohol) on college grade point average (colGPA. In addition to collecting information on G
Mr. Miller is putting a border around the edges of a rectangular ceiling. The perimiter of the ceiling is 18 meters. What are the two dimensions?
BRAINLIEST WILL BE GIVEN Did you speak loudly and clearly, stay on topic, and talk to other students (rather than the teacher)?
The scatter plot shows the time spent watching TV, x, and the time spent doing homework, y, by each of 24 students last week. (a) Write an approximate equation
Hey add me ages 11-13 please
this is a question i'm stuck on. Help me on this.