PrettyAddictionxoxo
PrettyAddictionxoxo PrettyAddictionxoxo
  • 10-02-2022
  • Mathematics
contestada

Find the vertex of the quadratic function
f(x) = 2x^2 - 6x + 7

A.) (0, 7)
B.) (1, 2)
C.) (-1.5, 2.5)
D.) (1.5, 2.5)

Respuesta :

rspill6
rspill6 rspill6
  • 10-02-2022

Answer:

(1.5,2.5)

Step-by-step explanation:

f(x) = 2x^2 - 6x + 7

Take the first derivative and set it equal to 0 (the slope is 0 at the vertex)

f'(x) = 4x -6

0 = 4x - 6

4x = 6

x = 3/2 or 1.5

If x = (3/2), then y = 2(3/2)^2 - 6(3/2) + 7

y = 2(9/4) - 18/2 + 7

y = (9/2) - 2

y = 2.5

See attached graph.

Ver imagen rspill6
Answer Link

Otras preguntas

Determine the discriminant for the quadratic equation -3=x2+4x+1. Based on the discriminant value, how many number solutions does the equation have? real Discri
Why do some of boys feel nervous while there is girls near by them?Is it Gyno Phobia or something?​
Solve for x and round to nearest tenth <3
Does the author of "Shakespeare: More Than a Playwright" present sufficient evidence to support the claim that Shakespeare was a good actor? Evaluate the claim.
Read the excerpt from the Declaration of Sentiments. He has made her, morally, an irresponsible being, as she can commit many crimes with impunity, provided the
URGENT, PLEASE HELPPPP!!! BEST ANSWER GETS BRAINLIEST! In a minimum of two to three sentences, defend the view that "The Miranda rule prevents innocent people f
The lateral area of a cone is 19.2π in2. The radius is 2.4 in. Find the slant height.
How many separate English colonies were in North America in 1770? 2. 6 O 12 13
(Write a descriptive paragraph on a special object you own ) Help me guys
Explain how stroke is caused by substance abuse