Gerald has two free-lance jobs. The income he can make from his first job can be represented by the function M(x) = 408x + 327, where x is the number of weeks he works. The income he can make from his second job can be represented by the function A(x) = x2 + 61x. Which function best describes D(x), the income he can make from both jobs? A. D(x) = 409x2 + 388x B. D(x) = x2 + 469x + 327 C. D(x) = 409x2 + 61x + 327 D. D(x) = x2 + 61x + 388

you answer is a

step-by-step explanation:

50-38=12

step-by-step explanation:

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.