- 75

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the polynomial f(x) = ax

has one of its zeros at x = 5 and passes through the point (-2, -560)

Question: Use this info to find the values of a and b

I am prepping for a test and this one question is really stumping me, I wondered if anyone would be able to help. For all of this type of question up till now where it asks to find a and b, I have been given a factor and the remainder. I know with these values I should set up two equations, one for a and one for b, then use them to solve each other. I know if a zero is x = 5 then a factor will be x = -5 but I have no idea what to do with the point given, is there something obvious I am missing? Any help on this would be greatly appreciated

^{4}- 3x^{3}- 63x^{2}+ 152x - bhas one of its zeros at x = 5 and passes through the point (-2, -560)

Question: Use this info to find the values of a and b

I am prepping for a test and this one question is really stumping me, I wondered if anyone would be able to help. For all of this type of question up till now where it asks to find a and b, I have been given a factor and the remainder. I know with these values I should set up two equations, one for a and one for b, then use them to solve each other. I know if a zero is x = 5 then a factor will be x = -5 but I have no idea what to do with the point given, is there something obvious I am missing? Any help on this would be greatly appreciated

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