Hi there, actually, the image that you provided us with does not have any grid or graph to mark the points on
1,8 is the mid point of these two numbers
1/8, 7/2, 5/6, 10/3
just swap numerator and denominator for each
Find f(-2) f(x)=9x^2-5x+2
f(-2) means replace x in the equation with -2:
f(-2)=9(-2)^2-5(-2)+2
= 9(4) +10 + 2
= 36 +10 + 2
= 48
f(-2) = 48
