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Math Problems: Solve Equations & Functions

Practice solving math equations involving direct and inverse variations, logarithms, functions, and calorie calculations. Test your skills with challenging problems and learn important mathematical concepts.

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Math Problems: Solve Equations & Functions

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  1. X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function? 7 – 3(x + 2) = 4x +16 – 2x What does logophobia mean?

  2. Practice

  3. Solve:4 < 2x – 8 < 15

  4. Simplify:-(4x + 12) + 5(2x – 16)

  5. There are about 200 calories in 50 grams of Swiss cheese. Trey Songz ate 70 grams of this cheese. About how many calories were in the cheese that he ate if the number of calories varies directly with the weight of the cheese?

  6. The following table is an inverse variation. Fill in the missing spaces.

  7. Function or Not?

  8. If f(x) = x2 + 4x and g(x) = 5 – 3x, find the following. f(-3) = g(-5) = f(1) + g(3) =

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