exam Maths Puzzle Numerical Ability

Hi I need help with this

indicate which quadrant or coordinate axis contains the point.
(a)(3,-5)
(b)(-2,7)
(c)(0,-3)
(d)(-1,-2)
(e)(3,0)
(f)(6,4)

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exam Other Question

My economic class is quite challenging. Here is a question regarding the CPI.

Stanbon, does this make it any clearer? Thank you for your patience.

I(t) = - 0.2t ^ + 3 The amount A of money on deposit for t years in an account earning simple interest is a linear function of t. Express that function as an equation if A=$124 when t=2 and A=$184 when t=5.