In the algebraic expression of 8x - 9, the 8 is an a. constant
b. monomial
c. co-efficient
d. variable

C, co-efficient

Step-by-step explanation:

The definition of co-efficient is a number multiplied by a variable.

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the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.