andrewdes342 andrewdes342
  • 18-05-2018
  • Mathematics
contestada

Determine the number of x-intercepts that appear on a graph of each function. f (x) = (x + 2)(x - 1)[x - (4 + 3i )][x - (4 - 3i)]

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 18-05-2018
f(x) has two real roots, -2 and +1. Those are the only x-intercepts.

f(x) has 2 x-intercepts.
Answer Link
joaobezerra joaobezerra
  • 04-11-2019

Answer:

This function has two x-intercepts.

Step-by-step explanation:

The number of x-intercepts of a function is given by the number of REAL ROOTS of the function. A complex root does not intercept x.

In this function, we have

Two real roots: x = -2 and a x = 1

Two complex roots: x = -4 + 3i and x = -4 - 3i

So this function has two x-intercepts.

Answer Link

Otras preguntas

An airport offers two shuttles that run on different schedules.If both shuttles leave the airport at 4:00 p.m.,at what time will they next leave theairport toge
is the square root of 130 rational or irrational please explain
A solution is prepared by dissolving sugar in water. The solution is 25.0%, by mass, sugar. How many grams of WATER are in 472 grams of this solution? a) 118 g
Solve r = cs/d for c
7,890 divided by 52? 34,680 divided by 64? 3,200 divided by 52? Last 3 till tomorrow
Why are lines of latitude also called parallels
What are the factors of 32?
how can I round 10899 to the nearest ten thousand
What are the factors of 32?
Larry has an annual return of $213 from $3000 invested at simple interest, some at 5% and the rest at 8%. How much is invested at each rate?