jordencash77
jordencash77 jordencash77
  • 21-06-2020
  • Mathematics
contestada

The roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 21-06-2020

Answer:

see below

Step-by-step explanation:

f(x) = x^2 – 2x – 3

To find the roots, set the equation equal to zero

0  = x^2 – 2x – 3

Factor, what two numbers multiply to -3 and add to -2

-3 * 1 = -3

-3 + 1 = -2

0 = (x-3)( x+1)

Using the zero product property

x-3 =0   x+1 =0

x=3          x=-1

Answer Link

Otras preguntas

(p+q)*(p-q) can you show the process
How did the Land Act in 1820 help Westerners? A. person could purchase 80 acres of land for $100 cash. B. person could buy 80-160 acres of land for $100 down
when using a quadratic equation of the form ax2 +bx+c=0 to find a distance what should be "ignored"
Can any one answer all QD
Which is a compound sentence using a subordinating conjunction? Most Brazilians, speaking Portuguese, have Indian or African customs. Most Brazilians speak Port
MARÍA Sergio, ¿quieres hacer diligencias ahora o por la tarde? SERGIO No (1) You Answered las dejemos Correct Answer is las dejemos (dejarlas) para más tarde. (
A train travels 65 km in three hours and then 52 km in two hours. What is its average speed?
Which of these statements is true about heating up air in the lower atmosphere? A. It occurs mainly through radiant energy. B. It occurs through convection
The president wanted to have the party at _____ house. her it their she
Please Pleasepleasepleasepleasepleasepleasepleaseplease