Answer:
Last option: (90, 60)
Step-by-step explanation:
We can solve this easily if we just notice that the point (90, 60) can be get by multiplying by 2 both the x-coordinate and y-coordinate of the given point (45, 30)
:
90 is 2*45 and 60 is also 2*30
We can verify also that the following is a true proportion:
[tex]\displaystyle\frac{90}{60}=\frac{45}{30}[/tex]
Since when we simplify both fractions (the first fraction is simplified by dividing both top and bottom by 30 and the second fraction by dividing both top and bottom by 15) we get:
[tex]\displaystyle\frac{3}{2}=\frac{3}{2}[/tex]