下面是2013年3月26日的SAT官方每日一题的内容，是关于数学方面的，题型是选择。SAT官方每日一题是collegeboard每天都会发布的题目，关于SAT考试的三个部分的各个题型。下面我们就一起来看一下这个SAT官方每日一题吧。
SAT官方每日一题之数学---选择：
Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
If the graph of the function
is a line with slope
, which of the following could be the equation of
?
(A)
(B)
(C)
(D)
(E)
The correct answer is B
Explanation
The graphs of all the given functions are lines, and the equations are all in the form
. When a linear equation is in the form
, the slope of the graph of the equation is
, the coefficient of
. The graph of the function
is a line with slope
, so the only choice that could be the equation of
is
.
下面是一道和SAT官方每日一题相似的题目，供大家练习：
If 
, what is the value of 
?
Answer Choices
(A) 
(B) 
(C) 
(D) 
(E) 
The correct answer is D
Explanation
Both 
and 
. The equation 
cannot be solved for 
because there are two unknowns. The value of 
can be found by solving the equation 
for 
. It follows that 
must equal 
. The value of 
can now be substituted into the equation 
, giving 
. Therefore, 
must equal 
.
以上就是关于2013年3月26日SAT官方每日一题中数学部分的详细内容，包括了题目和选项以及答案，后面附有一道相关的练习题。大家可以在备考SAT的过程中关注SAT每日一题的内容，这样就可以更好有不间断的练习，也就能在日积月累的过程中得到提高。
