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Genrish500 [490]
3 years ago
10

Find an equation for the line that passes through the point (-3, 6), parallel to the line through the points (0,-7) and (4,-15).

Write your answer in point-slope form.
Mathematics
1 answer:
Vitek1552 [10]3 years ago
8 0
Broken down into steps:

1.  Find the slope of the line segment that connecs the points (0,-7) and (4,-15).

2.  Start with the point-slope formula for the equation of a straight line:

y-b = m(x-a), where the given point is (a,b).  Borrow the value of m that you calculated in (1), above, and insert it into this point-slope formula.
Finish up by subst. the x- and y-values in (-3,6) into this formula.

Done!

You could, of course, solve this result for y if you wished.
You might be interested in
To factor 9x^2 - 4, you can first rewrite the expression as:
olga2289 [7]

Answer:

  C. (3x)^2 - (2)^2

Step-by-step explanation:

Each of the two terms is a perfect square, so the factorization is that of the difference of squares. Rewriting the expression to ...

  (3x)^2 - (2)^2

highlights the squares being differenced.

__

We know the factoring of the difference of squares is ...

  a^2 -b^2 = (a -b)(a +b)

so the above-suggested rewrite is useful for identifying 'a' and 'b'.

4 0
3 years ago
PLS HELP! I NEED TO FIND THE SURFACE AREA OF THIS CYLINDER!
Contact [7]

Exact Surface Area = 378pi

Approximate Surface Area = 1186.92

The approximate surface area uses pi = 3.14

The units are cm^2 or "square cm".

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

Work Shown:

SA = surface area of cylinder

SA = 2*pi*r^2 + 2*pi*r*h

SA = 2*pi*7^2 + 2*pi*7*20

SA = 2*pi*49 + 2*pi*140

SA = 2*49*pi + 2*140*pi

SA = 98pi + 280pi

SA = 378pi ..... exact surface area

SA = 378*3.14

SA = 1186.92 ..... approximate surface area

----------

Side note: The diameter 14 cuts in half to get the radius r = 7

3 0
3 years ago
Read 2 more answers
Given an =12+(n−1)(−8) what would the constant rate of change be?
DiKsa [7]
The correct answer is B
Hope this helped :)
8 0
3 years ago
Pls help me with this!
stira [4]

Answer:

See below.

Step-by-step explanation:

1.

(a) < PMR

(b) < QMR

(c) < QMN

(d) < RMN

2. m < C = 4x - 6

= 4(25) - 6

= 100 - 6

= 94  so   < C is obtuse.

3. 8x + 2 = 90

8x = 90 - 2

8x = 88

x = 11.

4.

(a).  < DBA and < DBC are  right angles (90 degrees) because BD is perpendicular to AC.

(b) < DBA and < DBC are adjacent and they share the ray BD.

(c) < DBe and < ABE are complementary.

(d) < DBA and < DBC are supplementary

(e)  90 - 40 = 50 degrees

(f) 180 - 40 = 140 degrees.

(g) As the angles are complementary

3x + 2 + 4x + 4 = 90

7x  = 90 - 2 - 4

7x = 84

x = 12.

6 0
3 years ago
A model jet is fired up in the air from a 16-foot platform with an initial upward velocity of 52 feet per second. The height of
ZanzabumX [31]
Option B: 1.6 s.

Although the equation is not included, you can obtain it by physical considerations

H(t) = -16.t^2 + 52t + 16

The maximum point is at the vertex and the vertex is in the middle of the roots.

The roots are when H(t) = 0,

So you have to solve 0 =-16t^2 + 52t + 16

Use the quadratic formula and you will find t = 3.53 and t =-0.28

Then the vertex is at the middle point = (3.53 -.028)/2 =1.63 s and the answer is option B: 1.6 s.
5 0
3 years ago
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