exam Maths Puzzle Numerical Ability

Determine whether the following equations have a solution or not? Justify your answer.
p2 - 4p + 4 = 0

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exam Other Question

I have no clue how to do this problem can someone please help?

Solve the equations by graphing: y=5x-7
y-5x=8
Can you help me write an equation for this line?

A line passes through the point(x,y)=(4,-1) and has a slope of 8 . Write an equation for this line.