All categories

3 years ago

Help me please i need help

Mathematics

1 answer:

Mila [183]3 years ago

4 0

Answer:

A. y = 2x -9

B. y = -1/2x +1

Step-by-step explanation:

The given line is in slope-intercept form

y = mx + b

where m is the slope. For your given line, the slope is 2.

A. A parallel line will have the same slope. It is convenient to start with a point-slope form of the equation for the line:

y = m(x -h) +k . . . . . for slope m through point (h, k)

You want the equation of the line through (4, -1) with slope 2, so its equation is ...

y = 2(x -4) -1

Simplifying to slope-intercept form, this becomes ...

y = 2x -8 -1

y = 2x -9

___

B. A perpendicular line will have a slope that is the opposite of the reciprocal of the slope of the given line. That slope is ...

m = -1/2

As above, the point-slope form of the perpendicular line is ...

y = -1/2(x -4) -1

y = -1/2x +1 . . . . . after simplification

You might be interested in

There are two conditions under which we can assume that the sample means follow a normal distribution. What are they

Naddik [55]

Two conditions under which we can assume that the sample means follow a normal distribution are as follows:

1). If the sample size is large enough, n greater than or equals 30, the sampling distribution is approximately normal regardless of the shape of the population.

2). In order to be considered a normal distribution, a data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean.

To learn more about Normal Distributions visit:

brainly.com/question/4079902

#SPJ4

5 0

2 years ago

ABCD~LMNO Find the value of MN if AB=12cm, BC=9.6cm and LM= 16cm

Arturiano [62]

The answer is C

Explaining:

3 0

3 years ago

The probability of rain =0.2, sun=0.3,cloud=0.5. What is the probability of rain and sun over a two day period?

svp [43]

Answer:

0.2752512

Step-by-step explanation:

The formula you are looking for is the binomial probability:

P (X) = ------------ * (P)^X * (q)^n - X

(n- X)! X!

For your particular problem:

n=7

X=2

q = 1-p = .8

7!/(5!*2!)*(.2)^2*(.8)^5 = 0.2752512

Hope this helps, have a nice day/night! :D

6 0

3 years ago

Mina, bobby, and Julia each have the same number of pencils. 2/6 of Mina's pencils are red, 2/3 of Bobby's pencils are red, and

RUDIKE [14]

Bobby. If you find the common denominator here which is 12 then Mina has 4/12 red pencils, bobby has 8/12 red pencils, and julia has 6/12 repent ils. Therefore bobby has the most red pencils.

6 0

3 years ago

Can you solve 4 + 2/3 x = -5 in fraction form?

guapka [62]

Answer:

$\frac{-27}{2} = (-13)(\frac{1}{2})$