Answer:
√85 or 9.22
Step-by-step explanation:
For this, you'd want to use the distance formula, which is just something you'd eventually memorize.
Distance = [tex]\sqrt{(x_{2}- x_{1})^{2} + (y_{2}- y_{1})^{2}}[/tex]
Then, you'd plug in the values. Something to keep in mind is the coordinate that is farther right will be ([tex]x_{2} ,y_{2}[/tex]), since [tex](x_{2}- x_{1})[/tex] is supposed to represent the change in x (and same with the y).
d = √( (7 - (-2))² + (9 - 7)²)
= √( (9²) + 2²)
= √(81 + 4)
= √85
= 9.22
I hope this helps!
