Answers: After 7 years the car is worth $10,196(,46)
Explanation: Year 1: $24,950•0,88=21,956 Year 2: $21,956•0,88=19,321(,28) Year 3: $19,321(,28) •0,88=17,002(,73) Year 4: $17,002(,73) •0,88=14,962(,40) Year 5: $14,962(,40) •0,88=13,166(,91) Year 6: $13,166(,91) •0,88=11,586(,88) Year 7: $11,586(,88) •0,88=10,196(,46)
To find the perpendicular slope, you use the negative reciprocal of the slope you already have. Since the original slope is -1/4, you flip -1/4 to get -4. You then find the negative of -4 to get 4
