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Inga [223]
2 years ago
14

Can someone do this fast please it’s like 2am

Mathematics
1 answer:
Lilit [14]2 years ago
5 0

Answer:

(5, 6)

Step-by-step explanation:

First, get both equations into slope-intercept form so they are easier to graph:

y=mx+b

The first equation is already in this form, so only do the second equation:

x-y=-1

To do this, just solve for y and that should almost always get it in the correct form.

\rightarrow x-y=-1\\\rightarrow -y=-x-1\\\rightarrow y=x+1

That equation is also now in slope-intercept form.

Now, using the slope and y-intercept in both equations, you can graph them. Using the graph, you can see the solution of this system of equations at (5, 6).

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3x+y=7<br> 6x+4y=22<br> can somebody help me solve this problem?
swat32
Hey there!

\boxed{x=1;y=4}

3x + y = 7 \\ \\ &#10;    6x + 4y = 22

y = -3x + 7 \\ \\ Plug \ this \ in \ for \ variable \ (y) \ in \ equation \ \\ \\ &#10;&#10;       6x + 4*(-3x+7) = 22 \\ \\ &#10;       -6x = -6 \\ \\ 6x=6 \ x+1 \\ \\ x=1 \ y=-3x+7 \\ \\ \boxed{y=-3(1)+7=4} \\ \\ \boxed{\boxed{x=1;y=4}}

I hope this helps you!
5 0
3 years ago
X+3y=9. graph using slope and y-intercept
timama [110]
Well, in order to first determine the slope or y-intercept, you must put change the equation to this format: y=mx+b.
m=slope and b=y-intercept
I
in order to do that, you must change this equation.

x+3y=9

-x     -x
----------
3y=9-x

Then, rewrite it as: 

3y=-x+9
_______
3      3

simplify to  

y=-x/3 +9



6 0
3 years ago
Read 2 more answers
On a coordinate plane, 2 rectangles are shown. The first rectangle has points A (negative 2, negative 1), B (4, negative 1), C (
Inessa [10]

Answer:

its C!!  :) T3, –2(x, y)

Step-by-step explanation:

6 0
3 years ago
What is the sum of radical 28and radical 63
miv72 [106K]

Answer:

91 radical

Step-by-step explanation:

because because two radicals make a radical and when you add those numbers together there 91 so 91 radical

8 0
3 years ago
F(x) = 2x + 5
Finger [1]

9514 1404 393

Answer:

  15. f(x) +g(x) = 7x +2

  16. f(x) -g(x) = -3x +8

  17. h(x) · g(x) = 35x -21

Step-by-step explanation:

Substitute the function definition for each function expression and simplify.

__

15. f(x) + g(x) = (2x +5) +(5x -3)

  f(x) +g(x) = 7x +2

__

16. f(x) - g(x) = (2x +5) -(5x -3)

  f(x) -g(x) = -3x +8

__

17. h(x) · g(x) = (7) · (5x -3)

  h(x) · g(x) = 35x -21

4 0
3 years ago
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