Dada a função afim f(x)=-2x+3,determine:a)f(1)= b)f(0)= c)f(1/3) d)f(-1/2)
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Dada a função afim
f(x)=-2x+3,determine:
a)f(1)=
x = 1
f(x) = -2x + 3
f(1) = - 2(1) + 3
f(1) = - 2 + 3
f(1) = + 1
f(1) = 1
b)f(0)=
x = 0
f(x) = - 2x + 3
f(0) = - 2(0) + 3
f(0) = - 0 + 3
f(0) = 3
c)f(1/3)
x = 1/3
f(x) = - 2x + 3
f(1/3) = - 2(1/3) + 3
f( 1/3) = - 2(1)/3 + 3
f(1/3) = - 2/3 + 3
2
f(1/3) = - ------ + 3 ( mmc = 3( SOMA com fração faz)
3
- 1(2) + 3(3)
f(1/3) = --------------
3
- 2 + 9
f(1/3) = -------------
3
f(1/3) = 7/3
d)f(-1/2)
x = - 1/2
f(x) = - 2x + 3
f(-1/2) = -2(-1/2) + 3
f(-1/2) = -2(-1)/2 + 3
f(-1/2) = +2/2 + 3
f(-1/2) = 1 + 3
f(-1/2) = 4
f(x)=-2x+3,determine:
a)f(1)=
x = 1
f(x) = -2x + 3
f(1) = - 2(1) + 3
f(1) = - 2 + 3
f(1) = + 1
f(1) = 1
b)f(0)=
x = 0
f(x) = - 2x + 3
f(0) = - 2(0) + 3
f(0) = - 0 + 3
f(0) = 3
c)f(1/3)
x = 1/3
f(x) = - 2x + 3
f(1/3) = - 2(1/3) + 3
f( 1/3) = - 2(1)/3 + 3
f(1/3) = - 2/3 + 3
2
f(1/3) = - ------ + 3 ( mmc = 3( SOMA com fração faz)
3
- 1(2) + 3(3)
f(1/3) = --------------
3
- 2 + 9
f(1/3) = -------------
3
f(1/3) = 7/3
d)f(-1/2)
x = - 1/2
f(x) = - 2x + 3
f(-1/2) = -2(-1/2) + 3
f(-1/2) = -2(-1)/2 + 3
f(-1/2) = +2/2 + 3
f(-1/2) = 1 + 3
f(-1/2) = 4
miriam20161:
obg me ajudou bastante!
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