exam Maths Puzzle Numerical Ability

Please explain to me how to sketch the graph of y=5+7x. How do you figure out the numbers in the table when you are constructing a table of values? Please explain step by step PLEASE. Thank you

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exam Other Question

Given: Angle 1 = (x+7), Angle 2 = (2x-3), Angle ABC = {{{x^2}}}, and Angle D = (5x-4)
Show that angle ABC is congruent to angle D.
How would you find the answer?
Find the indicated value of the polynomial. Match your result to the correct answer below. Round to the nearest tenth.

P(x) = –x3 + 4x2 – 2.1, P(–4.1)

If you could explain this to me I would appreciate it