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RSB [31]
3 years ago
10

X+y= -9 x+2y= -25 According to the system of equations above, what is the value of y?

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
Try this option:
if x+y=-9 is I (one)
and x+2y=-25 is II (two), then
if II-I, then (x+2y)-(x+y)=-25+9 ⇔ y=-16.
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Can you guys please help me out
marta [7]
C , it’s become more adapted to and more modern
5 0
3 years ago
Given various values of the linear functions f(x) and g(x) in the table, determine the y-intercept of (f- g)(x).
lisabon 2012 [21]

The y-intercept of linear function (f- g)(x) is (0,9)

<h3>How to determine the y-intercept?</h3>

The table of values is given as:

x   -6 -4 -1 3 4

f(x) 15 11 5 -3 -5

g(x) -36 -26 -11 9 14

The equations of the functions is calculated using:

y = \frac{y_2 -y_1}{x_2-x_1} * (x -x_1) + y_1

So, we have:

f(x) = \frac{11 -15}{-4 + 6} * (x + 6) + 15

Evaluate

f(x) = -2x + 3

Also, we have:

g(x) = \frac{-26 + 36}{-4 + 6} * (x + 6) - 36

Evaluate

g(x) = 5x - 6

Next, we calculate (f - g)(x) using:

(f - g)(x) = f(x) - g(x)

This gives

(f - g)(x) = -2x + 3 - 5x + 6

Substitute 0 for x

(f - g)(0) = -2(0) + 3 - 5(0) + 6

Evaluate

(f - g)(0) = 9

Hence, the y-intercept of (f- g)(x) is (0,9)

Read more about linear functions at:

brainly.com/question/24896196

#SPJ1

7 0
2 years ago
Help please...............
frozen [14]

Answer:

Sam made a mistake, and their correct value is 30.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=x%20%5C6%20-%201%20%3D%20%20x%20%5C4%20%2B%201%20%5C2" id="TexFormula1" title="x \6 - 1 = x \
skelet666 [1.2K]

Answer:

-18

Step-by-step explanation:

Hope it helps....................................................

6 0
2 years ago
HELP ASAP FOR BRAINLIEST!!
Diano4ka-milaya [45]

Answer:

Not equivalent

Step-by-step explanation:

The three would also be distributed to z making the correct equivalent expression 15+3z

8 0
3 years ago
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