Find the slope of a line passing through the points (3,9) and (1,8)

slope=1/2

Step-by-step explanation:

Put the points on a graph. The points from (1,8) to (3,9) go up 1 and right 2. Go rise over run or the change in y over the change in x and you use these numbers to find the slope, which is 1/2.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i