Please help on this one!

C.

Explanation:

The point we are looking for is -15 1/4

Let's look at the first option; A. A would not be the right answer due to the fact that the dot on the number line is between -14 and -15. The number -15 1/4 is greater than (or I suppose "less than" considering we're in the negatives) -15. This is not the right answer.

Check out B. The dot is located somewhere between -15 and -16, where our number -15 1/4 is located. However, -15 1/4 should be located closer to the -15 than the -16 in this case. The dot located here is somewhere more around -15 3/4. Again, not what we're looking for.

Let's check out C. The dot is somewhere between -15 and -16 on the number line. This is encouraging. The dot is also located before the half-way mark between these two numbers. 1/4 is less than 1/2. Since this dot is located between the two desired numbers, AND is centered somewhere between -15 and -15 1/2, I think we can say with confidence that C is the correct answer.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0