exam Maths Puzzle Numerical Ability

y=(x=1)^2-25
x^2+24=(x-1)^2-25
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exam Other Question

For f(x)= 1 divided by x^2-2x-8, find the interval(s) where f(x)<0. My answer is after plotting it out; (-2,4) could this be right. thanks for looking it over with me. Complete the ordered pairs so that each is a solution for the given equation.

Equation:
y = -2x + 5

Availble ordered pairs:

(0, ), ( , 5), ( 3/2, ), ( ,1)

Not sure I understand this one. Thanks for the help.