Which of these tables could represent a quadratic function?
a.
x y
1 -1
2 4
0 -4
-1 -7
-2 -10
b.
x y
-5 -3
-3 5
-1 5
1 -3
2 -10
c.
x y
2 4
2 2
2 0
2 -2
2 -5
d.
x y
-6 4
-5 -4
0 -4
4 -4
5 -4

Which expression is equivalent to 2x^2+7x+4?

If eh = hg and hg=16, find the diameter of k

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.