exam Maths Puzzle Numerical Ability

Consider the line y= -1/4x+4

What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?

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exam Other Question

Graph the function.

f(x)=x squared+3 Find an algebraic expression for the quantity in italics using the following information. The area of a rectangle with a length of b meters and a width of 5 meters