Very top 1 …………………………………………
Answer:
D. (y +4)² = -4(x -2)
Step-by-step explanation:
The directrix is a vertical line, and the focus is to the left of it. The parabola will open to the left.
The vertex is halfway between the focus and directrix, so is located on the same horizontal line as the focus, at ...
x = (1 +3)/2 = 2
The focus to vertex distance is the difference in x-coordinates: 1 -2 = -1. This is the value of p in the form ...
(y -k)² = 4p(x -h) . . . . . . . parabola with vertex (h, k)
The equation is ...
(y +4)² = -4(x -2)
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<em>Additional comment</em>
Once you determine that the directrix is a vertical line, you know the equation will have a y² term. The only answer choice that has that is D.
Answer:
Step-by-step explanation:
Look at the y-values as x-values are same for all tables.
<u>We see that:</u>
- Tables 1 and 5 - linear function as the differences are same.
- Tables 2 and 3 - exponential function as the ratios are same.
- Tables 4 and 6 - seem quadratic as there are repeat values showing the symmetry.
Answer:
0
Step-by-step explanation:
(-7 + 3) - (2 - 6)
PEMDAS
Parentheses first
(-4) - (-4)
Subtracting a negative is adding
-4 +4
0