The app isn't letting me post the picture alone so this is just here so I can post the picture ;-;

Mathematics

1 answer:

labwork [276]2 years ago

7 0

Answer:

(x, y) = (0, -2248)

Step-by-step explanation:

Substitution

Substitute for y:

300x -2248 = 350x -2248

0 = 50x . . . . . . . . add 2248-300x to both sides

x = 0

y = 300·0 -2248

The solution is (x, y) = (0, -2248).

Elimination

Subtract the first equation from the second.

(y) -(y) = (350x -2248) -(300x -2248)

0 = 50x

x = 0

y = 300·0 -2248

The solution is (x, y) = (0, -2248).

Additional comment

If you think for a bit about what the graph looks like, you realize both lines cross at their y-intercept, (0, -2248). That point of intersection is the solution to the system of equations.

You might be interested in

Match the equation with its graph. -2/3x - -1/4y=1/3

Volgvan

If the equation is -(2/3) x - (1/4) y = 1/3, it is a straight line, so you can use some special points to identify the graph.

It is easier is you solve the equation for y:

(1/4)y = - 1/3 - (2/3) x

y = (-4/3) - (8/3)x

That is the slope -y-intercept form of the equation.

That means that the slope is -8/3, and the y-intercept is -4/3.

Use this points to identify the graph:

x = 0 => y = - 4/3 ---> (0, - 4/3)

y = 0 => x = - 1/2 -----> (-1/2, 0)

Now you can punt those two points on the graph and draw the line that joins them.

With this procedure you can find the graph of any straight line.

4 0

3 years ago

Between which two whole numbers does 89 lie a. 4 and 5 b. 7 and 8 c. 8 and 9 d. 9 and 10

madreJ [45]

Answer:

there isint

Step-by-step explanation:

first you give up second drop out of school

8 0

3 years ago

Simplify 4 1/2 x 2 3/5 8 3/7 117/7 8 3/10 11 7/10

Lynna [10]