miamthompson
miamthompson
11-05-2016
Mathematics
contestada
what is the vertex f(x)= 5x^2+20x-16
Respuesta :
meerkat18
meerkat18
19-05-2016
f(x) = 5x² + 20x - 16
y = 5(x² + 4x) - 16
y + 16 = 5(x² + 4x + __)
perfect square:
x² ⇒ x * x
4x ⇒ 2*2x
2² = 4
y + 16 + 4 = 5(x² + 4x + 4)
y + 20 = 5(x+2)²
(x+2)² ⇒ (x+2)(x+2) = x(x+2) + 2(x+2) = x² + 2x + 2x + 4 = x² + 4x + 4
y = 5(x+2)² - 20
Answer Link
VER TODAS LAS RESPUESTAS ( 31+ )
Otras preguntas
An osteocyte is a A. tumor on the ear. B. bone cyst. C. bone cell. D. bone tumor.
An amusement park in Orlando, Florida, has an iconic spherical structure at its entrance. The diameter of the structure is 165 ft. What is the approximate volum
Model the function rule y = -2x - 3 with a table of values.show your work
what is m²- 5m -14 = 0 in quadratic formula??
What kind of tax is paid when purchasing consumer goods and services?
Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with the oxide ion, O2-.
Who was John Hansen?
Spiral grooves cut into the barrel of a gun in order to make a bullet spin as it is fired are known as what?
What is the difference between substantive due process and procedural due process?
What mass of nitrogen Dioxide, NO2, would be produced by the decomposition of 75.0g of copper (II) nitrate?
