Which of the following represents an equation of a line with a slope of -2 and a y-intercept of -3?
a. y= -2x + 6
b. y= -2x + 3
c. y + 3= x
d. y= 1/2x - 3

None of the above, the equation a line with slope M and y-intercept B is given by y=Mx+B. Hence, in this case M=-2 and B=-3 so y=-2x-3 is the correct answer which is not listed.

The expression of this would be 3.75x+y= 23

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*