For Exercises 1-10, (a) complete an input-output table for x = − 3 , − 2 , − 1 , 0 , 1 , 2 , 3 ; (b) state the percent increase or decrease per unit x , (c) identify the y -intercept, and (d) sketch the graph. 4. k ( x ) = 6 ⋅ 1.2 x
For Exercises 1-10, (a) complete an input-output table for x = − 3 , − 2 , − 1 , 0 , 1 , 2 , 3 ; (b) state the percent increase or decrease per unit x , (c) identify the y -intercept, and (d) sketch the graph. 4. k ( x ) = 6 ⋅ 1.2 x
Solution Summary: The author explains how to identify the input output table for x=3 and 2, and the y-intercept for the function kx =61.2x.
For Exercises 1-10, (a) complete an input-output table for
x
=
−
3
,
−
2
,
−
1
,
0
,
1
,
2
,
3
;
(b) state the percent increase or decrease per unit
x
, (c) identify the
y
-intercept, and (d) sketch the graph.
Consider the following system of equations, Ax=b :
x+2y+3z - w = 2
2x4z2w = 3
-x+6y+17z7w = 0
-9x-2y+13z7w = -14
a. Find the solution to the system. Write it as a parametric equation. You can use a
computer to do the row reduction.
b. What is a geometric description of the solution? Explain how you know.
c. Write the solution in vector form?
d. What is the solution to the homogeneous system, Ax=0?
2. Find a matrix A with the following qualities
a. A is 3 x 3.
b. The matrix A is not lower triangular and is not upper triangular.
c. At least one value in each row is not a 1, 2,-1, -2, or 0
d. A is invertible.
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Linear Equation | Solving Linear Equations | What is Linear Equation in one variable ?; Author: Najam Academy;https://www.youtube.com/watch?v=tHm3X_Ta_iE;License: Standard YouTube License, CC-BY