from the x coordinate
matrix A and AT are
.
.
from the y coordinate
vector b is
.
take
..
.
now take
.
.
solve for
augmented matrix is
6 | 63 | 2129 |
63 | 895 | 20928 |
convert into Reduced Row Eschelon Form...
Divide row1 by 6
1 | 21/2 | 2129/6 |
63 | 895 | 20928 |
Add (-63 * row1) to row2
1 | 21/2 | 2129/6 |
0 | 467/2 | -2853/2 |
Divide row2 by 467/2
1 | 21/2 | 2129/6 |
0 | 1 | -2853/467 |
Add (-21/2 * row2) to row1
1 | 0 | 586991/1401 |
0 | 1 | -2853/467 |
reduced matrix is
.
.
line is y=mx+c
.
.
or
.
.
in 2007 take x=22
.
.............asnwer
Use quadratic regression and a graphing calculator to find the quadratic function that best fits the...
Use linear regression to find the equation for the linear function that best fits this data. Round both numbers to two decimal places. Write your final answer in a form of an equation.... ...y = mx+b 125 | 136 172 | 194
a) Use the Holt Blue Polynomial Regression Calculator to make a scatter diagram of these data By defaut. this will Inclucde the parabola of best fit along wilth the data points. Print out this graph, cut it to size. and paste it to your poper b) Use the Holt Blue Polynomial Regression Calculator to determine the equation of the (Round the coefficients of this quadratic function to two decimal places.) quocdraftic function of best t. c) Use your quadratic function...
Use the ALEKS graphing calculator to find the x-intercept(s) and vertex for the quadratic function. f(x) = -4x²–2x+3 Round to the nearest hundredth if necessary. If there is more than one x-intercept, separate them with commas. If applicable, click on "None". 00.... None X-intercept(s): vertex: 1 00 X ?
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