helperjoe helperjoe

05-01-2018
Mathematics

contestada

This system has one solution.
What is the y-coordinate of the solution?

y = 8x – 9
y = x^2 + 8x – 9

Respuesta :

charles63 charles63

05-01-2018

hi !

y=8x-9
y=x²+8x-9

x=(y+9)/8
y=x²+8x-9

x=(y+9)/8
y=((y+9)/8)²+8((y+9)/8)-9

x=(y+9)/8
y=(y+9)²/8²+y+9-9

x=(y+9)/8
y=(y+9)²/64+y

x=(y+9)/8
(y+9)²/64=0

x=(y+9)/8
(y+9)²=0

x=(y+9)/8
y+9=0

x=(y+9)/8
y=-9

x=(-9+9)/8
y=-9

x=0
y=-9

Answer Link

Otras preguntas

Which ordered pair is a solution of the inequality? v>4x-5 (I point) O (3, 4) O(2, 1) O (3, 0) O(1, 1)

A medical researcher surveys all shoulder surgery patients in each of 9 randomly selected counties in North Carolina. Which type of sample does this represent?

Which situation represents a proportional relationship? The cost of purchasing boxes of paper is $25.39 per box plus a shipping fee of $3.25. The cost of repair

Breakeven-- target profit=$126K. sells product for $50 per unit, variable=$15 and fixed is $98K

though neighbors heard kitty genovese screaming for help as she was being murdered, they failed to call the police in time to save her. this best illustrates:

A census was conducted at a school. All of the students were asked how many cars their family owns. The results are below. Number of Cars 0 1 2 3 Probability 0.

what looks like discrimination in the labor markets is always just a problem of the high cost of information.

At rest, what percent of blood flow (aortic flow) is directed to the kidneys?

people who undergo sex transformation surgery, lighten their skin to appear to be another race, or hire a plastic surgeon to create a younger appearance remind

the distribution of heights of adult american men is approximately normal with mean 69 inches and standard deviation 2.5 inches. what percent of men are between

Q&A Education