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Anastasy [175]
3 years ago
11

Plz help I need these done ASAP

Mathematics
2 answers:
Olegator [25]3 years ago
7 0

Answer: a > 4

<u>Step-by-step explanation:</u>

-5 + a > -1

<u>+5      </u>    <u>+5 </u>

       a > 4

Graph:    4 o-----------→

Interval Notation: (4, ∞)

Ugo [173]3 years ago
3 0

Answer:

<h2>a > 4</h2>

Step-by-step explanation:

-5+a>-1\qquad\text{add 5 to both sides}\\\\-5+5+a>-1+5\\\\a>4

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If m=1/2 and b=-4, what is the equation of the line?
Vilka [71]
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Which equation represents the line through (4, -6) and (0, 2)?
lukranit [14]

Answer:

y=-2x+2

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: y=mx+b where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when x=0).

<u>1) Determine the slope (</u><u><em>m</em></u><u>)</u>

m=\displaystyle\frac{y_2-y_1}{x_2-x_1} where two points that fall on the line are (x_1,y_1) and (x_2,y_2)

Plug in the given points (4, -6) and (0, 2):

m=\displaystyle\frac{-6-2}{4-0}\\\\m=\displaystyle\frac{-8}{4}\\\\m=-2

Therefore, the slope of the line is -2. Plug this into y=mx+b:

y=-2x+b

<u>2) Determine the y-intercept (</u><u><em>b</em></u><u>)</u>

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y=-2x+2

I hope this helps!

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The ratio would be <u><em>3:8</em></u>
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3 years ago
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