harini1010 harini1010

09-10-2021
Mathematics

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The x-intercepts and vertex of the quadratic relation y = –(x + 3)(x + 5) are:
a) x-intercepts are 3 and 5; vertex is (4, 0)
b) x-intercepts are –3 and –5; vertex is (–4, 9)
c) x-intercepts are 3 and 5; vertex is (4, –63)
d) x-intercepts are –3 and –5; vertex is (–4, 1)

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bamboola1 bamboola1

09-10-2021

Answer:

d) x-intercepts are –3 and –5; vertex is (–4, 1)

Step-by-step explanation:

parabola are the vertex findings -4

we find these using formula m +n / 2

m+ n = -3 -5 / 2 = -4

m+n / 2 = -8/2 = -4

xv = -4

plug in -4 to find yv

(x+5)

(-4 + 5)

yv = 1

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