29.05.2021

If f(x) = 4x+ what is the value of (-3)?

. 4

Faq

Mathematics
Step-by-step answer
P Answered by PhD

The value of f(-3) is -21.

Given that,

Function; f(x) = 4x-9,

We have to determine,

The value of  f(-3).

According to the question,

Function; f(x) = 4x-9,

To find the value of f(-3) calculation must be done in a single unit following all the steps given below.

f(x) = 4x-9

To find the value of f(-3), substitute x = -3 in the given function,

f (x) = 4x-9\\\\f(-3) = 4(-3)-9\\\\f(-3) = -12-9\\\\f (-3)= -21

Hence, The required value of f(-3) is -21.

To know more about Function click the link given below.

link


F(x)=4x-9?  when the value is f(-3)
Mathematics
Step-by-step answer
P Answered by PhD

The value of f(-3) is -21.

Given that,

Function; f(x) = 4x-9,

We have to determine,

The value of  f(-3).

According to the question,

Function; f(x) = 4x-9,

To find the value of f(-3) calculation must be done in a single unit following all the steps given below.

f(x) = 4x-9

To find the value of f(-3), substitute x = -3 in the given function,

f (x) = 4x-9\\\\f(-3) = 4(-3)-9\\\\f(-3) = -12-9\\\\f (-3)= -21

Hence, The required value of f(-3) is -21.

To know more about Function click the link given below.

link


F(x)=4x-9?  when the value is f(-3)
Mathematics
Step-by-step answer
P Answered by Master

-9

Step-by-step explanation:

(gof)(-3) = g(f(-3) = g(-2) = -9

Or,

gof = g(f) = 2f-5 = 2(4x+10)-5 = 8x+15

so (gof)(-3) = -24+15 = -9

Mathematics
Step-by-step answer
P Answered by Specialist

-9

Step-by-step explanation:

(gof)(-3) = g(f(-3) = g(-2) = -9

Or,

gof = g(f) = 2f-5 = 2(4x+10)-5 = 8x+15

so (gof)(-3) = -24+15 = -9

Mathematics
Step-by-step answer
P Answered by Specialist

look at the two pictures if you want me to solve for f or x here

Step-by-step explanation: hope this help :)


2) The function f(x) is defined below. The value of f(-3) is:
f (x) = 4x + 5
2) The function f(x) is defined below. The value of f(-3) is:
f (x) = 4x + 5
Mathematics
Step-by-step answer
P Answered by Specialist

look at the two pictures if you want me to solve for f or x here

Step-by-step explanation: hope this help :)


2) The function f(x) is defined below. The value of f(-3) is:
f (x) = 4x + 5
2) The function f(x) is defined below. The value of f(-3) is:
f (x) = 4x + 5
Mathematics
Step-by-step answer
P Answered by PhD
Plug in -3 for x
f(-3) = 4(-3) + 5
f(-3) = -12 + 5
f(-3) = -7
Mathematics
Step-by-step answer
P Answered by PhD

-93

Step-by-step explanation:

Step one:

given the expressions

f(x) = -4x + 7\\\\g(x) = 2x^2 + 5x- 8

we want (fog)(-3).

but (fog) is

f(x) = -4x + 7\\\\\ (fog)=-4(2x^2 + 5x -8) + 7\\\\ (fog)=-8x^2-20x+32+7

Step two:

fog(-3)= put x= -3 in (fog)(-3)=-8x^2-20x+32+7

(fog)(-3)=-8x^2-20x+32+7\\\\ (fog)(-3)=-8(-3)^2-20(-3)+32+7\\\\ (fog)(-3)=-8*9+60+32+7\\\\ (fog)(-3)=-72-60+32+7\\\\ (fog)(-3)=-93

Mathematics
Step-by-step answer
P Answered by PhD

-93

Step-by-step explanation:

Step one:

given the expressions

f(x) = -4x + 7\\\\g(x) = 2x^2 + 5x- 8

we want (fog)(-3).

but (fog) is

f(x) = -4x + 7\\\\\ (fog)=-4(2x^2 + 5x -8) + 7\\\\ (fog)=-8x^2-20x+32+7

Step two:

fog(-3)= put x= -3 in (fog)(-3)=-8x^2-20x+32+7

(fog)(-3)=-8x^2-20x+32+7\\\\ (fog)(-3)=-8(-3)^2-20(-3)+32+7\\\\ (fog)(-3)=-8*9+60+32+7\\\\ (fog)(-3)=-72-60+32+7\\\\ (fog)(-3)=-93

Mathematics
Step-by-step answer
P Answered by Master

Hey there,

The question is asking us to solve for "y" when you plug in -3 for x.

First step would be to plug in -3 for x in the equation:

f(-3) = 4(-3) + 5

Now you multiply by 4 and then add 5 to get your

y = -12 + 5 = y = -7

The value of f(-3) would be -7.

Hope I helped,

Amna

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