ASAP. 30 points to who ever answers it first. The temperature in Minsk was recorded over a period of four hours. The equation
y = -5x + 54
describes the temperature over this time, where y is the temperature in
degrees Fahrenheit (°F) and x is the number of hours since measurements
started. Which of the following statements correctly describes the
temperature?
O A. It was -5°F when the temperature was first measured, and it is
rising by 54 degrees per hour.
O B. It was 54°F when the temperature was first measured, and it is
dropping by 5 degrees per hour.
C. It was 54°F after four hours, and it is dropping by 5 degrees per
hour.
O D. It was -5°F after four hours, and it is rising by 54 degrees per hour.
SUBMIT

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 to question 1 is -8, 28.

step-by-step explanation: