elisestanton elisestanton
  • 25-04-2020
  • Mathematics
contestada

how many solutions does this linear have?
y= 2x+4
x + 2y = 8

Respuesta :

DeanR
DeanR DeanR
  • 25-04-2020

y = 2x + 4

in standard form is

2x - y = -4

Second equation is

x + 2y = 8

Those aren't parallel.

Answer: exactly one solution

Let's solve,

x +2(2x + 4) = 8

5x + 8 = 8

5x = 0

x = 0

y = 2x + 4 = 4

Solution is (0,4)

Answer Link

Otras preguntas

Chef Romero takes a dozen large eggs from a refrigerator and uses an even number of eggs in a breakfast dish. The function p(e) = 6e gives the number of grams
Who, if any, in JFK's inner circle argued against the plans for the Bay of Pigs invasion?
Explain the relationship between individual and market demand
Trade occurs, generally speaking, because it is a _______ sum game. a. positive c. negative b. zero d. neutral
you arrive at an intersection with traffic lights that are not working because of a power outage. what do you do
Which rule best describes the pattern?3, 9, 27, 81, ___,____,___
Complicated means in bangla
The weights of 40 students were recorded. If the 75th percentile of their weights was 140 pounds, what is the total number of students who weighed more than 140
Complicated means in bangla
perfume evaporating is it a chemical change or physical change