Question

show that f(x)=3x-2 is an injective function

Answer 1

Answer:

f(x)=3x-2

so let x1 and x2 be arbitrary point

Step-by-step explanation:

put first x1 and then x2 in f(x)

for injection

f(x1)=f(x2)

3x1-2=3x2-2

3x1=3x2

so x1=x2 therefore it is injective function