Answer:
Answer: 18
Step-by-step explanation:
Do 120 x 15%
I suppose <em>K</em> is the matrix
To compute det(<em>K</em>), you can use a simple cofactor expansion along the first row:
Use the identity: and solve for . You get:
Do the substitution on the left side to get:
A. It is -6<b<10 so there are open circles at -6 and 10 with rays going off in opposite directions with a space in the middle
<h3><u>
Answer:</u></h3>
Option: C is the correct answer.
c) the coefficient of x is positive
<h3><u>
Step-by-step explanation:</u></h3>
We know that graph of a line goes up and to the right when the coefficient of x is positive.
Since we know that when a line goes up and to the right this means that the line is increasing and hence we will get a positive slope of the line and we know that the slope intercept of a line is given as:
as m is positive this means that:
the coefficient of x is positive.
Hence, the correct answer is:
c) the coefficient of x is positive