Step-by-step explanation:
All the 5 rows of the coefficient matrix (since it is of order 5×8) will have a pivot position. The augmented matrix obtained by adding a last column of constant terms to the 8 columns of the coefficient matrix will have nine columns and will not have a row of the form [0 0 0 0 0 0 0 0 1]. So the system is consistent.
Cross multiplying we get
x^2 = 2*7x
x^2 = 14x
x^2 - 14x = 0 is the answer
For #6 draw a triangle between the points and find the middle by drawing the lines to the middle. There should be triangles within the triangles which finding the hypotenuses should be the same.
Answer:
C
Step-by-step explanation:
A: (0,__) (__ is the y-intercept)
In this case it is (0,3) so 3
B: y=mx+b (b is the y-intercept)
-4 is b so -4
C: y=2x+4
4 is b so 4
Let me know if you would like further explanation!!
