Which transformation changes triangle ABC to triangle A′B′C′? (1 point) A coordinate grid is labeled from negative 6 to 0 to 6 on both axes. Triangle ABC is drawn in the fourth quadrant. Point A is the ordered pair 2, negative 4, point B is the ordered pair 5, negative 1, point C is the ordered pair 4, negative 5. Triangle A prime, B prime, C prime is drawn in the second quadrant. Point A prime is the ordered pair negative 2, 4, point B prime is the ordered pair negative 5, 1, point C prime is the ordered pair negative 4, 5.

A. Rotation 90 degrees clockwise about the origin
B. Rotation 180 degrees counterclockwise about the origin
C. Reflection about the y-axis followed by translation up by 8 units
D. Reflection about the x-axis followed by translation left by 4 units​

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons