You can approach this question by writing the function as y=… as I did in the photo. Then rearrange to make x the subject. Lastly, swap the ys for xs and write as I did on the final line of my working. If you like I can explain how to rearrange the equation or answer any other questions but I think you should be able to see
I think that x is on they y axis and what connects between that is 2,-3
Answer:
It means his IQ score is better than 91% of the other students scores and scored less than only 9% of the other students.
Step-by-step explanation:
Percentile is not the same as percentage. While percentage is the score gotten out of 100, whereas, percentile means that you are scored better than that percentage of people.
Thus, for his IQ score to be in 91st percentile, it means he scored above 91% of the other students, and only scored lesser than 9% of the students.
-4 -2(-4)+8 16 (-4,16)
-2 -2(-2)+8 12 (-2,12)
0 -2(0)+8 8 (0,8)
2 -2(2)+8 4 (2,4)
4 -2(4)+8 0 (4,0)
m=-2
b=8
