maymaaz
16.07.2019 •
Mathematics
Vertex f of δdef has coordinates (−3, 7). if δdef is reflected over the y-axis, what are the coordinates of vertex fʹ? will give brainliest
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Ответ:
Its coordinates will be (3, 7).
Ответ:
x = - 2
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
f(x) + g(x) = x² - 2x + 6x + 4 = x² + 4x + 4 ← equating to 0
x² + 4x + 4 = 0 ← in standard form
(x + 2)² = 0 ← in factored form, thus
x + 2 = 0 ⇒ x = - 2