Answer:
√89
Step-by-step explanation:
√(x2 - x1)² + (y2 - y1)²
√(9 - 1)² + [-6 - (-1)]²
√(8)² + (-5)²
√64 + 25
Set ? as x, and cross-multiply.
so x^2= 36
x = 6 or x = -6
scale factor is 4 so it will be 8mm
125
