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kompoz [17]
2 years ago
9

X+y=7 in slope intercept form

Mathematics
2 answers:
Travka [436]2 years ago
7 0

Answer:

y = -x + 7

Step-by-step explanation:

The slope formula is as follows:

y = mx + b

So, in order to get x + y = 7 into slope intercept form we have to do the following things:

  1. Subtract x from both sides

If you do this step then your equation should look like this:

y = -x + 7

<em>Hope this helps!!</em>

<em>- Kay</em>

PIT_PIT [208]2 years ago
7 0

Answer:

y = -x + 7

Step-by-step explanation:

  • Start with the given

x + y = 7

  • Use the Subtraction Property of Equality to isolate the y-variable

x + y = 7

-x           -x

  • Simply

y = -x + 7

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X + 2y = 6<br> (3x + 8y = 4
prohojiy [21]

Answer:

Both of them would just stay how they are

Step-by-step explanation:

Unless the x and y have a value that you have shown it would just stay at the same standard so there is not answer also no answer would be added.

3 0
2 years ago
Use cross products to find the area of the triangle in the xy-plane defined by (1, 2), (3, 4), and (−7, 7).
Free_Kalibri [48]

I love these. It's often called the Shoelace Formula. It actually works for the area of any 2D polygon.


We can derive it by first imagining our triangle in the first quadrant, one vertex at the origin, one at (a,b), one at (c,d), with (0,0),(a,b),(c,d) in counterclockwise order.


Our triangle is inscribed in the a \times d rectangle. There are three right triangles in that rectangle that aren't part of our triangle. When we subtract the area of the right triangles from the area of the rectangle we're left with the area S of our triangle.


S = ad - \frac 1 2 ab -  \frac 1 2 cd - \frac 1 2 (a-c)(d-b) = \frac 1 2(2 ad - ab -cd - ad +ab +cd -bc) = \frac 1 2(ad -bc)


That's the cross product in the purest form. When we're away from the origin, a arbitrary triangle with vertices A(x_1, y_1), B(x_2, y_2), C(x_3, y_3) will have the same area as one whose vertex C is translated to the origin.


We set a=x_1 - x_3, b= y_1  - y_3, c=x_2 - x_3, d=y_2- y_3


S= ad-bc=(x_1 - x_3)(y_2 - y_3) -(x_2-x_3)(y_1 - y_3)


That's a perfectly useful formula right there. But it's usually multiplied out:


S= x_1y_2 - x_1 y_3  - x_3y_2 + x_3 y_3 - x_2 y_1 + x_2y_3 + x_3 y_1 - x_3 y_3


S= x_1 y_2 - x_2 y_1  + x_2y_3 - x_3y_2   + x_3 y_1 - x_1 y_3


That's the usual form, the sum of cross products. Let's line up our numbers to make it easier.


(1, 2), (3, 4), (−7, 7)

(−7, 7),(1, 2), (3, 4),


[tex]A = \frac 1 2 ( 1(7)-2(-7) + 3(2)-4(1) + -7(4) - (7)(3)

8 0
3 years ago
Solve the equation. c4−5=4
nika2105 [10]

Answer:

4c - 5 = 4

4c = 9

c  = \frac{9}{4}

7 0
2 years ago
What is the converse of the conditional statement? if Shawn solves the case then Gus buy the churros
snow_tiger [21]
The converse of the statement is "If Gus buys the Churros then Shawn solves the case". The converse of statement is simply reversal of the hypothesis and the conclusion. In the given statement, the hypothesis was "If Shawn solves the case". The conclusion was "Gus buys the Churros".
5 0
2 years ago
Read 2 more answers
I need help with this
Finger [1]

ask your teacher.

use a calculator.

Use math tutoring for this module.

Pay more attention to the lecture.

3 0
2 years ago
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