SAT数学题求解释In the xy-coordinate plane, the graph of x = y*y -4 intersects line l at (0, p) and (5, t). What is the greatest possible value of the slope of l?(求大神救救我TAT,这题是肿么回事.)

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SAT数学题求解释In the xy-coordinate plane, the graph of x = y*y -4 intersects line l at (0, p) and (5, t). What is the greatest possible value of the slope of l?(求大神救救我TAT,这题是肿么回事.)
SAT数学题求解释
In the xy-coordinate plane, the graph of x = y*y -4 intersects line l at (0, p) and (5, t). What is the
greatest possible value of the slope of l?(求大神救救我TAT,这题是肿么回事.)

SAT数学题求解释In the xy-coordinate plane, the graph of x = y*y -4 intersects line l at (0, p) and (5, t). What is the greatest possible value of the slope of l?(求大神救救我TAT,这题是肿么回事.)
这是求斜率的最大值问题,可设此直线l的方程为y=kx+b,此直线又与曲线x=y^2-4交于(0,p)和(5,t),则可得:0=p^2-4,5=t^2-4,解得p=±2,t=±3,另外此两点在直线上,故可得:
p=b,5k+b=t,即k=(t-p)/5,故k的最大值是(3+2)/5=1

SAT数学题求解释In the xy-coordinate plane, the graph of x = y*y -4 intersects line l at (0, p) and (5, t). What is the greatest possible value of the slope of l?(求大神救救我TAT,这题是肿么回事.) 四道SAT数学题求解答1.If points X and Y are two distinct points in the coordinate plane, which of the following can have more than one possible value?A The circumference of a circle with diameter XY.B The area of a square with diagonal XY.C Th SAT数学题求翻译及解题过程Rectangle ABCD lies in the xy-coordinate plane so that its sides are not parallel to the axes. What is the product of the slopes of all four sides of rectangle ABCD?(A) -2 (B) -1 (C) 0 (D) 1 (E) 2 SAT 数学题 求简单方法这道题选C SAT数学题啊各种求解释和解答 3,8,18……In the sequence above, the first term is 3 and each term after the first term is twice the sum of the preceding term and 1. For example, 8=2(3+1). What is the value of the first term of sequence th 问道SAT数学题:xy=x+y.如果y>2,求x的范围? 一道sat数学题正解c 问一道SAT数学题Which of the following integers,when rounded to the nearest thousand,resaults in 2000A 2567B 1499C 1097D 1601E 2700 )17. The students sat together_____happily. A. sing B. to sing C. singing D. and singing求解释和答案 sat数学题一道求高手 求问一道SAT数学题 急!求解两道sat数学题!想不明白啊!求高人指教!1.In the decimal representation of 1/k,where 0 “Betty sat in the front seat of the classroo“Betty sat in the front seat of the classroom.”I thought she ______in the back.A.had sat B.sat C.has sat D.is sitting SAT两道数学题求解答!1.At time t=0,a ball was thrown upward from an initial height of 6 feet. Until the ball hit the ground, its height, in feet, after t seconds was given by the function h above, in which c and d are positive constants. If th 数学题,菱形,求xy SAT数学题一道,请问为什么不是C, sat数学题 求详细解释SAT语法题(10月28)1.To insist that a poem means whatever A.( one ) B.( wants it ) to mean is often C.( ignoring ) the intention and D.( even ) the words of the poet.2.At a time A.( when ) interest in twentieth-century classical