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If f(x) = minimum of (3x + 5, 10 - 2x), what is the maximum possible value of f(x)?

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If f (x) = minimum of (3x + 5, 10 - 2x), what is the maximum possible value of f (x)?

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in Quantitative Aptitude 7.9k points ●236 ●900 ●1073 1.3k views
0
If you graph both of these lines you will see that they 3x+5 slopes up and 10 - 2x slopes down with them intersecting at the point (1,8) making a big x on your graph.

So the function value is maximum at x=1.
36 points ●2

2 Answers

1 vote
Put x = 1, we get f(x) = 8.
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4.8
410 points ●2 ●4
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