Mathematics
Mathematics, 26.07.2019 10:30, bri1814

1) steven works at a large home appliance store. he earns a base salary of $20,000 plus commission which can be modeled by the equation y = 0.1x + 20,000. what is the meaning of the y-intercept in the equation?

answer
Answers: 1
Answer
answered: Guest

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) รท (20 years) ร— (t years)

= $100 + (4%/year) ร— ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 ร— 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 graph below shows the value of a $100 deposited into three different accounts over a period of 2

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