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Excel in math and science
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Algebra
Functions
Excel in math and science
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Suppose that \[\begin{align} f(x) &=4x^2-9,\\ g(x) &=3x+7,\\ h(x) &=f(x)+g(x). \end{align}\] What is the value of \(h(3)\)?
Excel in math and science
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It's hard to learn from lectures and videos
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Our wiki is made for math and science
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by Brilliant Staff
Consider the functions \[\begin{align} f(x)&=-5x+7,\\ g(x)&=-2x-3. \end{align}\] What is the value of \(f(6) \cdot g(1)\)?
Excel in math and science
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It's hard to learn from lectures and videos
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Our wiki is made for math and science
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Given the two functions \[f(x) = 2x + 1, \quad g(x) = -x - 2,\] if \[h(x) = f(x) + g(x), \quad k(x) = f(x) - g(x),\] what is the value of \( h(2) \cdot k(1)? \)
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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Consider the functions \[ \begin{align} f(x) &= 3x + 1 \\ g(x) &= x + \frac{1}{3}. \end{align} \] If \[ \begin{align} h(x) &= f(x) + g(x) \\ k(x) &= \frac{g(x)}{f(x)}, \end{align} \] what is the value of \( x \) satisfying \( h(x) - k(x) = 5? \)
Excel in math and science
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Suppose that \[\begin{align} f(x)&=-6x+7,\\ g(x)&=-3x-3. \end{align}\] What is the value of \(f(6) \cdot g(2)\)?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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by Brilliant Staff