I am a graduate who is looking over past exam papers for statistics. Basically starting from scratch in my learning since I absorbed very little from when I did it in uni (was compulsory for psychology students to take statistics for two of the four years of the degree).

I have a question based on Regression, and I'm struggling to get it. See below. I have a feeling it could be super obvious, but here goes.

"Consider the following regression equation:

Y = 50 +2A - 10B + 8C

1-What is the Y intercept?

2-What Y would you predict for a case where A=3, B=1, and C=0?"

I'm confused because I know the linear regression equation to be y = ax + b (or whatever variation you may use) with a being the gradient and b being the intercept in this case. So I'm not sure how this new equation fits into that structure - or if it's even meant to?

Thanks.

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