Question

f(x)=x3-5x2-7x+4
a.f(1). b. f(-2) c. f(1/2)
pahelp nmn po ​

Answer 1

Step-by-step explanation:

this is your answer. please like my answer.

Answer 2

Concept

In mathematics function is a law that defines a relationship between two variables out of them one is the dependent and the other is the independent variable.

Given

F(x) = x3-5x2-7x+4

Find

1. F(1)

2. F(-2)

3. F(1/2)

Solution

1) F(1)

F(x) = x3-5x2-7x+4

Putting value of x = 1 in the function

F(1) = (1)3 – 5(1)2 – 7 +4

= 1 -5 -7 +4

= -7

2) F(-2)

F(x) = x3-5x2-7x+4

Putting value of x = -2 in the function

F(-2) = (-2)3 – 5(-2)2 – 7(-2) +4

= -8 -20 +14 +4

= -28+18

= -10

3) F(1/2)

F(x) = x3-5x2-7x+4

Putting value of x = 1/2 in the function

F(1/2) = (1/2)3 -5(1/2)2 – 7(1/2) +4

= (5-38)/8

= -33/8

The value of F(1) , F(-2) and F(1/2) is -7 , -10, -33/8 respectively.

#SPJ3