Which values of P and Q result in an equation with no solutions?

Mathematics

1 answer:

Ad libitum [116K]3 years ago

3 0

Try this solution/explanation:

way 1:

rule: for an equation where no roots P+Q=0. It means, Px-Qx=0, ⇔ x(P-Q)=0, ⇔ P=Q.

for answer 'D' P=Q=15.

way 2:

rule: if an equation of the line has a form y=kx+b, then y₁||y₂ if k₁=k₂. It means, for y₁=Px-45 || y₂=Qx+75, then P=Q. P=Q, if 'D' answer.

Answer: D

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Step-by-step explanation: