3 years ago

For which equation would x = 3 be a solution?

Mathematics

1 answer:

frutty [35]3 years ago

7 0

1. b , 2. A

this has toooo have 20 or more letters soooo i’m doing thissssss hiiiii

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postnew [5]

Answer:

The line equation in slope-intercept form is:

$y\:=-\frac{2}{5}x+4$

Hence, option D is true.

Step-by-step explanation:

Given the points

(0, 4)

(5, 2)

Finding the slope between the points

$\left(x_1,\:y_1\right)=\left(0,\:4\right),\:\left(x_2,\:y_2\right)=\left(5,\:2\right)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{2-4}{5-0}$

$m=-\frac{2}{5}$

As the y-intercept is obtained by setting the value x = 0.

As we know that when x = 0, the vale of y-intercept y = 4

so the y-intercept is b = 4.

As the slope-intercept form is

substituting the slope m = -2/5 and the y-intercept b=4

$y = mx+b$

$y\:=-\frac{2}{5}x+4$

Therefore, the line equation in slope-intercept form is:

$y\:=-\frac{2}{5}x+4$

Hence, option D is true.

6 0

2 years ago

Solve y=x^2 + 7 for x

crimeas [40]

Hello! To solve for x means to isolate x:

y = x^2 + 7
y - 7 = x^2
sqrt(y - 7) = x

Answer:
x = sqrt(y - 7)

Hope this helps!

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3 years ago

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e-lub [12.9K]

A!

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erma4kov [3.2K]

The answer is 5x because when you do the math 12 subtracted by 7 equals 5 then you add the x at the end.

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amm1812

Answer:

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Step-by-step explanation:

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