nnataliaortizz nnataliaortizz

22-08-2019
Mathematics

contestada

give the function f(x) =2x^2+4x-7 find f(-4)?
A -55
B -7
C 9
D 25

Respuesta :

jimrgrant1 jimrgrant1

22-08-2019

Answer:

C

Step-by-step explanation:

To evaluate f??(- 4) substitute x = - 4 into f(x), that is

f(- 4) = 2(- 4)² + 4(- 4) - 7 = (2 × 16) - 16 - 7 = 32 - 23 = 9 → C

Answer Link

Otras preguntas

Jen is renting a mountain bike . The bike rental shop charges a $55 deposit for the bike and helmet plus an additional $15 per day

18-7f=4 13 + 3p = 7pls help me solve this two questions

True or false: The phenolphthalein indicator changes colour close to the point of neutralization which shows the end-point of the titration.

plz help ;-; I cant fail this

1/4v=5 plsssssss helppp meeeee

Pre Cal, please help

Find the value of x Please help

Using your notes, compare the features of analog and digital signals in the table provided. Include one to three points for each feature and type of signal. ~T

this is for a school project!!! this is a survey. you have to choose one or the other. One direction or Big time Rush???

The table below shows Greg's scores at a state golf tournament. What is Greg's average score for the five rounds? A. -4 B. -3 C. -2 D. -1