exam Maths Puzzle Numerical Ability

Please help.
Find the slope and the y-intercept.
y = -8x - 4

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exam Other Question

ok one more This one like that last has graphs that i can not copy and paste here for some reason. Any way here is what i can show you.
5) Find the equations for the horizontal an Jennifer is 6 years older than Sue. In 4 years, she will be twice as old as Sue was 5 years ago. Find their ages now.