3 years ago

If f(x) = 4x - 7, what's the value of f(2) ? * O -1 O 1 O 20 O 35

Mathematics

1 answer:

Alla [95]3 years ago

4 0

Step-by-step explanation:

f(x) = 4x - 7

f(2) = 4(2) - 7

f(2) = 8 - 7 => 1

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Although the problem above may look really different or much harder than any equation we have solved before, guess what?! It’s n

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Answer:

4b+8 = 20

---------------

4b = 20

-------------------

b = 5

Step-by-step explanation:

We need to solve for b in the following equation:

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When we multiply each term by 2 the denominator cancels out:

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Next, we subtract 8:

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Final step, we isolate the variable. We cancel the multiplication on the left side when dividing by 4 on each term

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