martinezizzie
31.07.2019 •
Mathematics
What are the coordinates of the vertex for f(x) = x2 + 6x + 13? a. (4, 4) b. (−4, 4) c. (3, 4) d. (−3, 4) which of the following is a factor of 5x3 + 320? a. 5 b. x+4 c. x^2-4x+16 d. all of the above
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Ответ:
c = (b/2)2 = (6/2)2 = 9
x2 + 6x + 9 + 4
(x+3)2 +4
so the vertex is at: (-3, 4), D)
Ответ:
7
Step-by-step explanation:
(4, -8) and (-1, 3), formula used will be
/
so:
-1 - (-8)/3 - 4 = -1 + 8/1 = 7/1 = 7
i edited my answer a few times cause i read the points wrongly so just know that this is the correct one.