X+y=5 2x - y = 1 Need help

Mathematics

2 answers:

erma4kov [3.2K]3 years ago

8 0

Answer:

y = 3

x = 2

Step-by-step explanation:

x+y=5 == -2x - 2y = -10

2x-y = 1 == 2x - y = 1 +

-------------------

-3y = -9

y = 3

x + y = 5

x + 3 = 5

x = 2

Ber [7]3 years ago

5 0

(2,3)

Step-by-Step:

(1) x+y=5
2x-y=1

(2) add column by column (positive y plus negative y cancels out, equaling 0)

3x=6

(3) divide both sides be 3

x=2

(4) sub 2 in for x for either equation ( i chose the top one)

2+y=5

(5) subtract 2 from both sides

y=3

(6) put your answer in ordered pairs

(2,3)

Hope this helps

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PLEASE HELP!!! WHICH OF THE FOLLOWING FUNCTIONS IS GRAPHED BELOW?

SashulF [63]

Answer: D.

Step-by-step explanation:

For an absolute value function, the vertex of $f(x) = |x+h| + k$ is defined as the point (-h, k) for the coordinate (x, y).

When x is equal to negative h, the value for x and value for h effectively cancel out, and only the positive k remains, hence the vertex being (-h, k).

The function given has a vertex at (2, 3). We know that the vertex of an absolute function is (-h, k), so h must equal -2 and k must equal 3.

The equation:

$f(x) = |x-2| + 3$