ERROR ANALYSIS (Example Video and see problem 4 on p.314 in the book) A student claims that - 4i is the only imaginary root of a quadratic polynomial equation
that has real coefficients.
a. What is the student's mistake? (2 points)
b. Write one possible polynomial that has the correct roots from part a in standard
form. (3 points)
See problem 4 on p. 314, and use the setup below to get started.

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.