新SAT官方Daily Practise每日一题数学推理题

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Read the following SAT test question and then click on a button to select your

answer.

SAT官方Daily Practice 数学汇总，点击进入

T(m)=10m+40

Carlos decides to cook a steak. The interior temperature of the steak, T(m),

in degrees Fahrenheit (°F), after cooking for m minutes is given by the function

above. What does the number 10 in the function mean in this context?

A.The interior temperature of the steak, in degrees F, before Carlos starts

cooking it

B.The increase in the interior temperature of the steak, in degrees F, every

1 minute the steak is cooked

C.The decrease in the interior temperature of the steak, in degrees F, every

1 minute the steak is cooked

D.The interior temperature of the steak, in degrees F, 1 minute after Carlos

starts cooking it.

重点单词：

slope [sləup] n. 倾斜，斜坡，斜面，斜线，斜率

minutes ['minits] n. 会议记录，(复数)分钟

context ['kɔntekst] n. 上下文，环境，背景

multiple ['mʌltipl] adj. 许多，多种多样的

function ['fʌŋkʃən] n. 功能，函数，职务，重大聚会

temperature ['tempritʃə(r)] n. 温度，气温，体温，发烧

option ['ɔpʃən] n. 选择权，可选物，优先购买权

答案：B

解析：

Option B is correct. In this function, 10 is the slope, which represents the

change in the temperature over time, in degrees F per minute.