What is the difference between constructing a square and constructing a regular hexagon?

the diameter of the circle is used for the square construction, but the radius of the circle is used for the regular hexagon construction.

the radius of the circle is used for the square construction, but the diameter of the circle is used for the regular hexagon construction.

the square will need two arcs along the circle, but the hexagon will need two arcs above and two arcs below the diameter of the circle.

the square will need six arcs along the circle, but the hexagon will need two arcs above and two arcs below the diameter of the circle.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

the answer is ! ?