Answer:
Options (B) and (C).
Explanation:
When a quadratic function 'f' is multiplied by k,
1). If k > 0, function 'f' will be vertically stretched Or horizontally compressed.
2). If 0 < k < 1, function will be vertically compressed Or horizontally stretched.
Given quadratic function is,
f(x) = 3x² + 3x - 7
This function is multiplied by 0.5.
Since 0 < 0.5 < 1, therefore, the function will be compressed vertically Or stretched horizontally.
Therefore, Options B and C are the correct options.