taiwan-gsat 2025 Q18

taiwan-gsat · Other · gsat__math-b 3 marks Exponential Functions Applied/Contextual Exponential Modeling
It is known that UVI values have an exponential relationship with altitude: for every 300-meter increase in altitude, the UVI value increases by 4\% of the value before the increase. At ground level, the ultraviolet radiation received from the sun is 400 joules per square meter. At a mountain 4500 meters above ground level, the UVI value of the ultraviolet radiation received is which of the following options? (Single choice question, 3 points)
(1) $4 ( 1 + 0.04 \times 15 )$
(2) $4 \left( 1 + 0.04 ^ { 15 } \right)$
(3) $4 ( 1 + 0.04 ) ^ { 15 }$
(4) $4 \times 100 ( 1 + 0.04 ) ^ { 15 }$
(5) $4 \times 100 \left( 1 + 0.04 ^ { 45 } \right)$
It is known that UVI values have an exponential relationship with altitude: for every 300-meter increase in altitude, the UVI value increases by 4\% of the value before the increase. At ground level, the ultraviolet radiation received from the sun is 400 joules per square meter. At a mountain 4500 meters above ground level, the UVI value of the ultraviolet radiation received is which of the following options? (Single choice question, 3 points)\\
(1) $4 ( 1 + 0.04 \times 15 )$\\
(2) $4 \left( 1 + 0.04 ^ { 15 } \right)$\\
(3) $4 ( 1 + 0.04 ) ^ { 15 }$\\
(4) $4 \times 100 ( 1 + 0.04 ) ^ { 15 }$\\
(5) $4 \times 100 \left( 1 + 0.04 ^ { 45 } \right)$