Name
WS #69
WS: 6.1b - Evaluating Functions
quations in function notation
Standard H.2A.5.C3: I can solve equations in function no
d. g(5)
Directions: Solve each function for the requested value.
1. Let g(x) = x2 - 5x + 2. Find the following:
a. g(-1)
b. g(-2)
c. g(0)

Respuesta :

Answer:

A) g(-1) = 8

B) g(-2) = 16

C) g(0) = 2

Step-by-step explanation:

The given equation is [tex]g(x) = x^{2} + 5x + 2[/tex]

A) Substituting the value of  x = -1 in the given equation we get,

[tex]g(-1) = (-1)^{2} - \left \{5\times(-1) \right \} + 2[/tex]

       = 1 + 5 + 2

       = 8

                         

B) Substituting the value of x = -2 in the given equation we get,

[tex]g(-2) = (-2)^{2} - \left \{5\times(-2) \right \} + 2[/tex]

       = 4 + 10 + 2

       = 16

C) Substituting the value of x = 0 in the given equation we get,

[tex]g(0) = (0)^{2} - \left \{5\times(0) \right \} + 2[/tex]

       = 0 - 0 + 2

        = 2