In the function below what is the output when x=5? f(x)=3x+2 , A) 17 , B) 13, C) 15, D) 10, Put 5 where the x is:Put 5 where the x is: f(5)=3(5)+2. Now calculate step by step: 3×5=15, 15+2=17. So the output is: 17. Clear???, Да мамочка!, Хуйня якась!, Which value should replace x to make the output 11? f(x)=x+4 , A) 15, B) 7 , C) 6, D) 5, Which function matches this rule? “Multiply by 4 then subtract 1”, f(x)=x+4-1 , f(x)=4x-1 , A taxi charges €3 to start and €2 per kilometre. Which function represents the total cost?, y=2x+3, y=3x+2, y=x+5, y=2+x, The taxi company charges in two parts: 1. Starting charge. You pay €3 before travelling any distance. This is a fixed amount, so it stays the same. 2. €2 per kilometre. For every kilometre, you add €2. So: 1 km → €2, 2 km → €4, 3 km → €6. This is: 2x because you multiply the number of kilometres by 2. Now put both parts together: 2x = distance cost. +3 = starting fee. So the function is: y=2x+3 where: x = kilometres, y = total cost. Quick check: If you travel 2 km: starting fee = €3. distance cost = €4. Total = €7. Check with the function: y=2(2)+3 y=7. Got it?, Всьоравно хуйня!, Зашибісь! поняла!.

Functions 2

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