Va rog mult ajutati-ma la rezolvarea problemei

stelele au luminozitati diferite. cele mai luminoase sint stelele de gradul 1, iar cele mai putin luimnoase stelele de gradul 6. luminozitatea a stelelor se micsoreaza de 2,5 ori odata cu trecerea de la un grad la altul. de cite ori sunt mai luminoase stelele de gradul 1,decit stelele de gradul 6?

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.