Answer:
The least common denominator, also called lowest common denominator (LCD), of 10 and 15 is 30.
Step-by-step explanation:
Y = f(x) = -3x
y = -3x
y = (constant) x
y is proportional to x.<span>
Hence we can say Y is proportional to x , having (-3) as proportionality Constant. hope this helps</span>
I’m not sure how to explain it but the answer is B
