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2 years ago

The system of equations is graphed on the coordinate plane.

Mathematics

1 answer:

Tcecarenko [31]2 years ago

4 0

The solution is: (-1,-2)

Step-by-step explanation:

Given equations are:

$y = x-1\ \ \ Eqn1\\y = -2x-4\ \ \ Eqn2$

In order to solve two equations with graphing method, the graphs of two equations are made which are straight lines the point of intersection is the solution of the equations.

Here,

The graph is given

To read the solution of the graph we see that on which x and y- coordinates the point of intersection is. then the answer is written as (x-coordinate , y-coordinate)

The solution point is highlighted with a circle. The x-coordinate is -1 and y-coordinate is -2

So,

The solution is: (-1,-2)

Keywords: Linear Equations, Graphing

Learn more about linear equations at:

#LearnwithBrainly

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Answer:

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2 years ago

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2 years ago

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skelet666 [1.2K]

Answer:

Step-by-step explanation:

Let $u^2=x^4\\u = x^2$

Subbing in:

$9u^2-2u-7=0$

a = 9, b = -2, c = -7

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The first two solutions are found withing the first set of parenthesis and the second two are found in other set of parenthesis. Factoring $(x^2-1)$ gives us that x = 1 and -1. The other set is a bit more tricky. If