K1endakaileyf K1endakaileyf

02-09-2016
Mathematics

contestada

Find the x-intercepts for the parabola defined by the equation below. y = 2x2 + 2x - 4

Respuesta :

HomertheGenius HomertheGenius

02-09-2016

2 x² + 2 x - 4 = 0
2 x² + 4 x - 2 x - 4 = 0
2 x ( x + 2 ) - 2 ( x + 2 ) = 0
( x + 2 ) ( 2 x - 2 ) 0 0
x + 2 = 0, or : 2 x - 2 = 0
x = - 2, 2 x = 2, x = 1
The x-intercepts are: ( -2, 0 ) and ( 1, 0 ).

Answer Link

Otras preguntas

The scale of a map is 1 in. = 35 mi. On the map, the distance between two cities is 3.25 in. What is the actual Distance?

Can someone plz help me? :)

When evaluating the performance of equity mutual funds, the conventional benchmark today is a four-factor model that includes the market, size, book-to-market,

HELP ME ASAP 15 POINTSSSS

Solve for b. 6 2 b= ✓ [?] b Pythagorean Theorem: a2 + b2 = c2

Help! I dont understand this

write an inequality for the word phrase below: a number squared is less than 45

The diagonal of a square is 2 cm. What is the length of the side of this square? Give your answer as an exact surd in its simplest form

before the reform act of 1832, who were the only British citizens who could vote? a. wealthy men b. owners of large landholdings c. members of the House of Lor

MS w 3 PRACTICE AND APPLY Complete each sentence in a way that shows the meaning of the boldfaced vocabulary word 1. He knows that he has a slow metabolism beca