Problem
Solution
From the figure given we can see that we have two points x1=0, y1=0, x2= 6, y2= 16.50
We can calculate the slope on this way:
m= (y2-y1)/(x2-x1)
Replacing we got:
m= (16.50-0)/(6-0)= 2.75
And our equation would be given by:
y= 2.75x
Now we can analyze one by one the statements given:
A is correct since for x=1 we have that y=2.75
B is incorrect since if we replace x= 2.75 in the equation we don't got y=1
C is incorrect since y(5)= 2.75*5= 13.75
D is correct since y(12) = 2.75*12= 33
E is incorrect since the point (3,9) is not on the graph of the proportional relationship.