Question

dada a funcao f(x)=-5x+7,calcule f(-2) f(-5) f(1/10) f_3/5

Answer 1

f(x)= -5x+7
f(-2)= -5.(-2)+7
f(-2)= 10+7=17

f(-5)= -5.(-5)+7=
f(-5)= 25+7= 32

f(1/10)= -5.1/10+7
f(1/10)= -5/10+7
f(1/10)= -1/2+7
f(1/10)= -1+ 14= 13