Second Long Exam (Math 60 AY1415, firstsem) - Mathematics 60 Second Long Examination Sample Examination First Semester A.Y 2014-2015 General Directions

Second Long Exam (Math 60 AY1415, firstsem) - Mathematics...

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Mathematics 60Sample ExaminationSecond Long ExaminationFirst Semester A.Y. 2014-2015General Directions:Show all necessary solutions and box all final answersI.Multiple Choice. Write theCAPITALletter of the correct answer.(1 point each) 1. The graph of the equation|y|=xis symmetric with respect to the A.x-axisB.y-axisC. originD.x-axis,y-axis, and origin 2. Which of the following represents a function? 3. Which of the following is the solution set of 0<|x+ 1|<5? 4. If the roots of 4x2+bx+c= 0 are 1 and-3, what is the value ofb+c? 6= 0, which of the following is false about the line with equationx+by+ 12 = 0? A. It is perpendicular tobx-y+ 12 = 0.B. It rises to the left wheneverb <0.C. It is never horizontal.D. It intersectsby-12 = 0.II. Do as indicated.1. UseCramer’s ruleto solve for y only in the system:3x+ 3y-z=2y-2x=4zy-3z=-1 ( 4 points )
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