Question

1-dada a funçao f(x)=-2x+3, determine a)f(1)= b)f(-2)= c)f(-4)= d)f(-6)= e)f(5)= f)f(1/2)= g)f(2/5)= h)f(-2/7)= URGENTE

Answer 1

f(x)=-2x+3
a)f(1)=-2*1+3=-2+3
f(1)=1
b)f(-2)=-2*(-2)+3=4+3
f(-2)=7
c)f(-4)=-2-*(-4)x+3=8+3
f(-4)=11
d)f(-6)=-2*(-6)+3=12+3
f(-6)=15
e)f(5)=-2*5+3=-10+3
f(5)=-7
f)f(1/2)=-2*1/2+3=-1+3
f(1/2)=2
g)f(2/5)=-2*2/5+3=-4/5+3
f(2/5)=11/5
h)f(-2/7)=-2*(-2/7)+3=4/7+3
f(-2/7)=25/7

Answer 2

Bom dia Mary

f(x) = -2x + 3

f(1) = -2*1 + 3 = 1
f(-2) = -2*-2 + 3 = 7
f(-4) = -2*-4 + 3 = 11
f(-6) = -2*-6 + 3 = 15 
f(5) = -2*5 + 3 = -7

f(1/2) = -2/2 + 3 = 2
f(2/5) = -2*2/5 + 15/5 = 11/5 
f(-2/7) = -2*-2/7 + 21/7 = 25/7