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Paladinen [302]

2 years ago

14

Graph the linear equation by find 2 = 4x + y

2 answers:

Vinil7 [7]2 years ago

7 0

2=4x+y

y=2-4x

Александр Мазепов

Leya [2.2K]2 years ago

5 0

Step-by-step explanation:

<u>Step 1: Solve for y</u>

$2 = 4x + y$

$2 - 4x = 4x + y - 4x$

$y = 2 - 4x$

<u>Step 2: Solve for x</u>

$2 - 2 - 4x = 0 - 2$

$-4x / -4 = -2 / -4$

$x = 1/2$

<u>Step 3: Solve for y</u>

$y = 2 - 4(0)$

$y = 2$

<u>Step 4: Graph the equation</u>

Graph the x-intercept, (1/2, 0), the y-intercept, (0, 2) and draw a line between them. Look at the attached picture for the graph:

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The length of the plywood's diagonal(to the nearest tenth) is, 3.6 and 1.4

Step-by-step explanation:

let l be the length and w be the width of the rectangle respectively;

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$5w^2 -w^2 = 4w + 4$ or

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$w^2-w-1 =0$ ......[2]

The quadratic equation is in the form of $ax^2+bx+c = 0$

the solution is given by: $x = \frac{-b \pm\sqrt{b^2-4ac}}{2a}$

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a= 1 , b = -1 and c = -1

Then the solution is:

$w= \frac{-(-1) \pm\sqrt{(-1)^2-4(1)(-1)}}{2(1)}$

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$w \approx 1.62$ and $w \approx -0.62$

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