Which of the following is the correct graph of the solution to the inequality -18 > -5x + 2 2 -48? -5 -4 -3 -2 -1 0
1
1
2
3
4 5
6
7
00
8
9
10 11 12 13
O
4 5
-5 -4 -3 -2 -1
o
1
1
2
3
6
7 8
9 10
10 11 12 13
o
10 11
-5 -4 -3 -2 -1 0 1 2
3 4 5 6 7
8 9
12 13
-5 -4 -3 -2 -1 0 1
+
7 8 9 10 11 12 13
2 3 4 5
6

Step-by-step explanation:

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Fast in

xejwootfsy

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this