exam Maths Puzzle Numerical Ability

Hi. Can I have some help with this equation?

An equation is given. Find the x- and y-intercepts. If there is only one x- or y-intercept.

(x - 7)(y + 9) = 1

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exam Other Question

Find the coordinates of point S.
where the circles radius is 8
the angle of the triangle is -45 degrees john traveled 40 mph to his friends house
on the return trip back home he traveled 45 mph
It took him 4hrs round trip
Question: What was the total distance traveled?

Thank you