For part A Amy's estimate is inaccurate because when adding fractions they must have the same denominators. Amy probably made the mistake of adding 1/4 and 1/3 without changing the denominators first which gave her 1/7. If she were to do it correctly then she would've ended up with 7/12 as her answer.
My work:
1/4=3/12
1/3=4/12
4/12+3/12=7/12
I hope this helps and if I gave any false information I apologize in advance.
Answer:
Hope it helps :)
Step-by-step explanation:
Answer:
Nonlinear
Explanation:
y=2/3 x^2-7 is nonlinear because it is not in slope intercept form.
Also, x² automatically means it is nonlinear because this is the formula for a parabola when graphed. Parabolas are nonlinear.
The parabola also doesn't continue in a straight or nearly straight line. That is what linear is.
