If you graph the three given points, you can see that the vertex (h,k) is (-1,3).
Equation of a quadratic function is: y = a(x - h)² + k
Plug in the vertex and one of the points (I chose (0,1)) and solve for "a".
1 = a(0 + 1)² + 3
-2 = a
Answer: f(x) = -2(x +1)² + 3
Answer:
100
Step-by-step explanation:
let 's' = score on 6th test
[88(5) + s] ÷ 6 = 90
= 90
cross-multiply to get:
440 + s = 540
s = 100
500-124=376
If 124 students liked snickers and 500 got surveyed then if we subtract how many got surveyed by how many liked snickers the answer would be 376.
Make sure each side lines up with the center of the compass and use the straightedge to measure the lengths of each side to be sure they're equal
Answer:
x = 20
Step-by-step explanation:
2x + 20 = 3x
2x - 2x + 20 = 3x - 2x
20 = x
2x + 20 = ?
2(20) + 20 = ?
40 + 20 = ?
60 = ?
3x = ?
3(20) = ?
60 = ?