The lines y=-3x+4 and y=-3x-17 are perpendicular.

No, they are not perpendicular, but they are parallel.

Step-by-step explanation:

1. Identify the Slope of both equations

   The slope of y=-3x+4 is -3

   The slope of y=-3x-17 is -3

2. Determine slopes

   If 2 lines are parallel, they have the same slope

   If 2 lines are perpendicular, their slopes are opposite reciprocals.

        e.g. The opposite reciprocal of 7 is -1/7

3. Determine if slopes are parallel or perpendicular

   Since the slop of both lines is -3, the two lines will be parallel to one     another with different points intersecting at the y-axis (4 and -17)

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)