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I see the photo you uploaded contains several math problems written on a whiteboard. Here's a transcription of the problems:

1. **Problem 6**:  
   Jika \( f \circ g (x) = 2x^2 - 3 \) dan \( g(x) = 3x + 1 \), maka tentukan \( f(x) \).

2. **Problem 7**:  
   Bahan baku sejumlah \( x \) diubah menjadi barang jadi sejumlah \( f(x) = \frac{x}{12} + 4 \). Barang jadi sejumlah \( y \) akan dijual sehingga menghasilkan pendapatan \( y = 200v - 320 \) dalam satuan ribu rupiah. Jika terdapat bahan baku sejumlah 144, maka pendapatan yang diperoleh adalah?

3. **Problem 8**:  
   Jika diketahui \( f(x) = \frac{x+3}{2x} \), maka \( f^{-1}(x) \) adalah?

4. **Problem 9**:  
   Jika diketahui \( f(x) = \frac{2x + 3}{x + 5} \); \( x \neq -5 \), dan \( g(x) = 3x + 1 \), tentukan \( (f \circ g)^{-1}(2) \).

5. **Problem 10**:  
   Diketahui \( f(x) = \frac{2x+2}{x+1} \) dan \( g(0) = 3 \), serta \( g^{-1}(4)(6) = 7 \), maka nilai \( g \) adalah?

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The user submitted several math problems involving algebraic functions, function compositions, and inverse functions.

This page provides solutions for several algebra problems involving function compositions, inverse functions, and linear transformations. Suitable for students in Grades 10-12. Topics include calculating f(x) from function compositions, finding inverse functions, and applying these concepts to real-world problems.

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