I think the first one is ( C :3 ) and the other one is B 2
1. 81 1/2 = 163/2
2. 32 1/5 - 64 1/3 =
483/15 - 965/15 =
-482/15 or -32 2/15
3. 16 1/4 = 65/4
4. 49 1/2 + 27 1/3 =
99/2 + 82/3 =
297/6 + 164/6 =
461/6 or 76 5/6
Answer: Last option.
Step-by-step explanation:
The equation of the line in slope-intercept form is:

Where m is the slope and b the intersection with the y-axis.
You can observe in the graph that the line passes through the origin, then:

Choose two points of the line and calculate the slope with:

Points: (2,3) and (-2,-3)
Substitute values, then the slope is:

Substituting "m" and "b" into
, you get that the equation is:

This can be written as:
