Solve the question

Mid Term Examination - I MIS - 103: Business Mathematics e: 1 hour Mark: 15 wer ALL. a) Points A(3, 2), B (6, 5), and C(x, 1) are on a line. Find x. [3+4] b) It finds that to produce a run of 130 chairs requires $8,200, and that a run of 250 chairs requires $13,000. If the cost to produce its chairs is a linear function of the number of chairs to be produced in a run. i. Find the equation giving cost, C, based on the number of chairs produced, x, in a run. if. What is the cost if no chairs are produced? in. What is the extra cost to make one more chair? 75 iy. Interpret the slope using the words of the problem. V . How much would it cost to produce 400 chairs? vi. How many chairs can be expected to be produced with a run that is assigned $8,600? ") Find the cofactors of all the elements of the following matrix: [4+4] 2 3 4 2 Solve the following system of linear equations by Cramer's Rule: x + 2y+z=8 2x + 3y + 2z =14 3x + 2y + 2z =13