Numerical please now

Q3. (5 points) In fitting a table of values to a function of the form a + bx-1 + cx-2, we try to make each point lie on the curve. This leads to a + bx1 + cxk2 = Yk for k= 0,..., n. (1) Multiply (1) by xk, we obtain an equivalent equation ax} + bxk + c = Yk xk for k= 0,..., n. Are the least squares problems for these systems of equations equivalent? Explain. Q3. (5 points) In fitting a table of values to a function of the form a + bx-1 + cx-2, we try to make each point lie on the curve. This leads to a + bx1 + cxk2 = Yk for k= 0,..., n. (1) Multiply (1) by xk, we obtain an equivalent equation ax} + bxk + c = Yk xk for k= 0,..., n. Are the least squares problems for these systems of equations equivalent? Explain