casper12456 casper12456
  • 24-02-2021
  • Mathematics
contestada

please help and show work
y=-8x
y=-4-10x

Respuesta :

kayleeharper187
kayleeharper187 kayleeharper187
  • 24-02-2021
{ y=-8x
{ y=-4-10x

Substitution Method:

-8x=-4-10x
x=-2

y=-8(-2)
y=16

(x,y) = (-2,16)

Check solution
{ 16=-8(-2)
{ 16=-4-10(-2)

{ 16=16
{ 16=16

Elimination Method:

{ 8x+y=0
{ 10x-y=-4

{ 8x+y=0
{ -10x-y=4

-2x=4
x=-2

8(-2)+y=0
y=16

(x,y) = (-2,16)

*For checking, its the same with the substitution method
Answer Link

Otras preguntas

(03.03 LC) Which of the following is a common technique advertisers use to mislead consumers into using "fad diets" to achieve optimal health and fitness? A) A
what is the answer to 20×38÷7-10×8 =
"what evidence exists that some of the asteroids were geologically active in the distant past"
What kind of symptoms involve reflecting noticeable decreases and absences in certain behaviors, emotions, or drives?
Timothy built a base for a circular tabletop. The base can support a tabletop with a radius of at least 6 inches, but not more than 23 inches. What is the sma
Which action would more likely take place in a modern family rather than in a traditional family? A. A student decides to attend a college because it is close t
Explain how you can find the simplest form of 100/1000
Common issues when solving cube root and 1/3 power equations.
The Dietary Guidelines for Americans recommend that you A) eliminate all fat and oils from your diet B) add processed sugars and additional sodium to your die
james madison highschool test questions