ferrosofia88 ferrosofia88
  • 02-05-2022
  • Mathematics
contestada

prove that y=2x^2-6x+7 and y=x^2-2x+3 touch each other and find the point of contact

Respuesta :

Аноним Аноним
  • 02-05-2022

Answer:

See below ~

Step-by-step explanation:

We need to prove they are equal.

Equate the values to each other.

  • 2x² - 6x + 7 = x² - 2x + 3
  • x² - 4x + 4 = 0
  • (x - 2)² = 0
  • x = 2

Now input the x-value in the 1st equation.

  • y = 2(2)² - 6(2) + 7
  • y = 8 - 12 + 7
  • y = -4 + 7
  • y = 3

Now input the same in the 2nd equation.

  • y = (2)² - 2(2) + 3
  • y = 4 - 4 + 3
  • y = 3

Since the same x-value, on inputting in both equations, give the same y-value, it is proved they touch each other.

Point of Contact

  • (x, y)
  • (2, 3)
Answer Link

Otras preguntas

5x+4y+100 in slope intercept form
The length of a diagonal of a cube with edge length 25cm
If Walt can paint 25 feet of fence in an hour, and Joe can paint 35 feet in an hour, how many minutes will it take them to paint a 150-foot fence, if they work
How do you Factor c(squared)-8c ??
Does every point lie in a quadrant?
How do you Factor c(squared)-8c ??
Dominick lives 1 3/4 miles from his school.  If his mother drives him half the way, how far will Dominick have to walk to get to school?
After what happened on April 19 can war between the colonies and Great Britain be avoided?
the cafeteria has 45 square  tables that can be pushed together to form one long table for the lacrosse team's banquet. Each square table can seat one person on
Find all powers of 4 in range 4 through 1,000