Which scale factors produce a expansion under a dilation of the original image? select each correct answer. −8 −0.7 0.8 7

An expansion means the image gets larger, so the scale factor has to be larger than 1.

The sign of the number ( either positive or negative) doesn't affect the scale, so to find the scale for an enlargement you can ignore the negative sign.

This would give you two numbers larger than 1, both -8 and 7 would be the correct scale factors.

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.

i dont know

step-by-step explanation:

umm. i dont know