a) f(x)=2x-1
f(1)= 2*1-1= 2-1= 1
f(3)= 2*3-1= 6-1= 5
f(5)= 2*5-1= 10-1= 9
f(7)= 2*7-1= 14-1= 13
Imgf:{1;5;9;13}
b) f(x)= 3x-2
f(1)= 3*1-2= 3-2= 1
f(3)= 3*3-2= 9-2= 7
f(5)= 3*5-2= 15-2= 13
f(7)= 3*7-2= 21-2= 19
imgf:{1;7;13;19}
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a) f(x)=2x-1
f(1)= 2*1-1= 2-1= 1
f(3)= 2*3-1= 6-1= 5
f(5)= 2*5-1= 10-1= 9
f(7)= 2*7-1= 14-1= 13
Imgf:{1;5;9;13}
b) f(x)= 3x-2
f(1)= 3*1-2= 3-2= 1
f(3)= 3*3-2= 9-2= 7
f(5)= 3*5-2= 15-2= 13
f(7)= 3*7-2= 21-2= 19
imgf:{1;7;13;19}