Find the slope of equation at the given point

Find the point on y = x that has a slope of -8.

Let's simulate the process of constructing a matrix for a 3D transformation that rotates 13 degrees about the axis n = [0.3, 0.2, 0.5]. First step: is the vector n a unit vector? (on the answers, 0.3^2 means 0.3-squared, and so on) O Yes, since 0.3 +0.2 + 0.5 = 1 O No, since 0.3^2 +0.2^2 + 0.5^2 1 O No, since 0.3^2 +0.2^2 + 0.5^2 = 1

find the equation of a line perpendicular to y=1/2x-4 and passing through (6,4). Identify the slope of this line. Then use the slope to find the slope of a line perpendicular to y=1/2x-4.