All categories

2 years ago

Find the equation for the line that passes through (4, - 8) that has slope - 2. Give your answer in

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

4 0

Answer:

y+8=-2(x-4)

Step-by-step explanation:

point-slope form is y-y1=m(x-x1) where m is the slope, and (x1,y1) is a point.

We are given all of that information:

slope: -2

point: (4,-8)

substitute the numbers into the equation

y--8=-2(x-4)

we can make --8 to positive 8

so:

y+8=-2(x-4)

this is the equation in point-slope form

Hope this helps!

You might be interested in

What is value of x?<br> https://static.k12.com/nextgen_media/assets/8093716-NG_GMT_SemB_08_UT_12.png

ELEN [110]

Check the picture below.

7 0

3 years ago

Read 2 more answers

option 1 drop down are: even-odd identity, quotient identity, Pythagorean identity, double-number identity.option 2 drop down ar

motikmotik

Answer:

The equation is given below as

$\frac{\cos2x}{\cos x}=\cos x-\sin x\tan x$

Step 1:

We will work on the left-hand side, we will have

$\begin{gathered} \cos x-\sin x\tan x \\ \text{recall that,} \\ Quoitent\text{ identity is} \\ \tan x=\frac{\sin x}{\cos x} \end{gathered}$

By substituting the identity above, we will have

$\begin{gathered} \cos x-\sin x\tan x=\cos x-\frac{\sin x.\sin x}{\cos x}=\cos x-\frac{\sin^2x}{\cos x} \\ \end{gathered}$

Here, we will make use of the quotient identity

Step 2:

By writings an expression, we will have

$\begin{gathered} \cos x-\sin x\tan x=\cos x-\frac{\sin x.\sin x}{\cos x} \\ \cos x-\sin x\tan x=\frac{\cos^2x-\sin^2x}{\cos x} \end{gathered}$

Here, we will use the definition of subtraction

$\cos x-\frac{\sin^2x}{\cos x}$

Step 3:

We will apply the double number identity given below

$\begin{gathered} \cos 2\theta=\cos (\theta+\theta)=\cos ^2\theta-\sin ^2\theta \\ \cos 2x=cos(x+x)=\cos ^2x-\sin ^2x \end{gathered}$

By applying this, we will have

$\frac{\cos^2x-\sin^2x}{\cos x}=\frac{\cos2x}{\cos x}$

Here, we will use the double number identity

$\frac{\cos^2x-\sin^2x}{\cos x}$

5 0

1 year ago

Solve the division problem. Round answer to the nearest hundreth<br><br> 9.2 divide 52.063

notsponge [240]

9.2/52.063 is equal to 0.18.

7 0

3 years ago

State if the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statemen

sergij07 [2.7K]

Answer:

please give me brainliest for quest

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

HELP!!!!!!!!!!! !!!!!!!!!!

Sonja [21]

Answer:

second one is 3, the last one is 4560

Step-by-step explanation:

5 0

3 years ago