Question

dada função f(x)= -2x + 3, calcule:
a. f(x)=3
b. f(x)=1
c. f(x)=-7
d. f(x)=0

Answer 1

função → f(x) = -2x + 3

a ) f(x) = 3

-2x + 3 = 3
-2x = 3 - 3
-2x = 0
x = 0 / -2
x = 0

b ) f(x) = 1

-2x + 3 = 1
-2x = 1 - 3
-2x =-2
x = -2/-2
x = 1

c ) f(x) = -7

-2x + 3 = -7
-2x = -7 - 3
-2x = -10
x = -10 / -2
x = 5

d ) f(x) = 0

-2x + 3 = 0
-2x = 0 - 3
-2x = -3
x = 3/2