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3 years ago

Please help me find the slope and y intercept

Mathematics

1 answer:

lbvjy [14]3 years ago

5 0

Answer:

y= -7x +4

Step-by-step explanation:

you find the slope by the slope equation y2-y1/x2-x1. I used (0,4) and (-1,11).

The slope equals -7.

You then use point slope to find the rest of the equation.

y-y1=m(x-x1).

y-4=-7(x-0)

y-4=-7x

y=-7x+4

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In ΔLMN, \overline{LN}

Karolina [17]

Answer:

$\bold{\angle NLM = 10^\circ}$

Step-by-step explanation:

Given a ΔLMN.

Line LN is extended to point O.

such that:

$\text{m}\angle MNO = (5x-13)^{\circ}$

$\text{m}\angle NLM = (x-4)^{\circ}$ and

$\text{m}\angle LMN = (2x+19)^{\circ}$

To find:

$\text{m}\angle NLM=?$

Solution:

Kindly refer to the attached image for the given triangle and dimensions of angles.

Let us recall the external angle property of a triangle:

The external angle of a triangle is equal to the sum of two opposite internal angles.

i.e.

$\angle MNO = \angle NLM + \angle LMN\\\Rightarrow 5x-13 = x-4+2x+19\\\Rightarrow 5x-13 = 3x+15\\\Rightarrow 5x-3x = 13+15\\\Rightarrow 2x=28\\\Rightarrow x =14$

Putting the value of $x$ in $\angle NLM$ .

$\angle NLM=14-4 \\\Rightarrow \bold{\angle NLM = 10^\circ}$

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3 years ago

How do I do question 9 b?

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