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Nikolay [14]
3 years ago
10

Y= 4x +3, 4x + y =3 are they parallel or perpendicular

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
6 0

Answer: Neither

Step-by-step explanation:

When two lines are parallel, their slopes are the same.

When two lines are perpendicular, their slopes are opposite reciprocals. Opposite reciprocals equal -1 when multiplied together.

Equation #1: y = 4x + 3

The equation is in the form y = mx + b, so the slope is 4.

Equation #2: 4x + y = 3

We need to put this equation in slope-intercept form.

1) Subtract 4x from both sides

y = -4x + 3

The slope is -4.

-4 and 4 are neither equal nor opposite reciprocals, so they aren't parallel or perpendicular.

FrozenT [24]3 years ago
5 0

Answer:

they are perpendicular  

Step-by-step explanation:

because the slope are opposite which means the lines intersect.

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klasskru [66]

Answer:

\frac{4}{9}  

Step-by-step explanation:

\frac{2}{3} * \frac{2}{3}

you multiply across, so you do 2*2 for the numerator, then 3*3 for the denominator. This would equal 4 as the numerator, 9 as the denominator,  which is \frac{4}{9}  

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3 years ago
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Answer:

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6 0
3 years ago
How do I Express the inequality x &lt; 7 using interval notation.
Sedaia [141]

Answer:  (-\infty, 7)

You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.

====================================================

Explanation:

Think of x < 7 as writing -\infty < x < 7

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7 0
3 years ago
Please help!!!!!!!!!!!
boyakko [2]

Answer:

  (7√6)/2

Step-by-step explanation:

The side ratios in these special triangles are ...

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This tells you the length of the horizontal line is 7√3, and the value of x is ...

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_____

<em>Additional comment</em>

Call the length of the horizontal line "y". Then the given ratios tell you ...

  7 : y = 1 : √3   ⇒   y/7 = √3/1   ⇒   y = 7√3

and

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When we rationalize the denominator, we get ...

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4 0
2 years ago
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Answer:

x = -1

Step-by-step explanation:

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