exam Maths Puzzle Numerical Ability

Hello, could someone help me on this problem please? Thank you for your help.
problem #68: Find the slope-intercept form of the equation of the line passing through the points. Sketch the line.
Points: (4,3) (-4,-4)

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exam Other Question

I need help answering this question. I really do not understand.

If two numbers are opposite of each other, are their reciprocals also opposite of each other?
Rewrite the middle term as the sum of two terms and then factor by grouping

x^2-14x+45