teniseta2013 teniseta2013
  • 13-11-2019
  • Mathematics
contestada

What is the x intercept of f(x)=x^2+7x+2? And how do you solve it?

Respuesta :

wolf1728
wolf1728 wolf1728
  • 13-11-2019

Answer:

Since that is a quadratic equation, it will have 2 "x" intercepts.

x^2+7x+2

a = 1   b = 7   c = 2

You would solve for "x" using the quadratic formula.

x = [ -b +- sq root (b ^ 2 - 4 a c) ] / 2 a

x = [ -7 +- sq root (7^2 - 4*1*2) ] / 2 * 1

x = [ -7 +- sq root (49 -8) ] / 2

x1 = [-7 + 6.4031242] / 2

x1 =  -.29844

x2 = [-7 - 6.4031242] / 2

x2 = -6.7016

Step-by-step explanation:

Answer Link

Otras preguntas

Why the mongoose is praised in Indian culture and hated in Hawaiian culture
A patient requires 36 mmol of phosphate and 90 meq of potassium in their pn. the pharmacy has stock solutions of potassium phosphate (3 mmol of phosphate and 4.
A scientist begins an experiment with a culture of 5 bacteria cells. Every hour, the number of bacteria cells triples. Which equation can be used to represent t
A recent study found that maximizing ____ was associated with a higher quality of life later in life. a. self-efficacy b. preconventional reasoning c. pessim
In the movie evacuees, why were the children evacuated from large cities?
What activity did young women attend in medieval Europe
What was the American Federation of Labor responsible for?
The population of a local species of flies can be found using an infinite geometric series where a1 = 940 and the common ratio is one fifth. write the sum in si
how do organisms get the energy they need?
Can someone help me