Linear functions SAT question

Math · Algebra · Easy · Answer it here, explanation included.

$f (x) = 7 x + 1$

The function gives the total number of people on a company retreat with $x$ managers. What is the total number of people on a company retreat with $7$ managers?

Enter a number or fraction (like 3/17 or 0.176). Press Enter to check.

ExplanationShow

The correct answer is $50$ . It's given that the function $f$ gives the total number of people on a company retreat with $x$ managers. It's also given that $7$ managers are on the company retreat. Substituting $7$ for $x$ in the given function yields $f (7) = 7 (7) + 1$ , or $f (7) = 50$ . Therefore, there are a total of $50$ people on a company retreat with $7$ managers.

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