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Leviafan [203]
3 years ago
10

(Please help) What is the rate of change of y with respect to x?

Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0

answer will be 2÷18=9

and the answer is 9

please mark this answer as brainlist

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What would the answer be???
Korolek [52]

Answer:

The solution is obtained by adding the two equations.

The solution is: (x, y) = ($ - \frac{2}{3} $, $ - \frac{7}{3} $)

Step-by-step explanation:

We are given two equations with two variables. The strategy is to eliminate one variable and solve for both the variables.

The two equations are:

$ 7x + y = - 7 \hspace{15mm} \hdots (1) $

$ 2x - y = 1 \hspace{15mm} \hdots (2) $

Adding both the equations, we get:

$ 7x + 2x + y - y = - 7 + 1 $

$ \implies 9x = - 6 $

$ \implies x = - \frac{2}{3} $

Substituting the value of 'x', we get the value of y.

We substitute in (2). [Can be substituted in any equation].

We get: y = 2x - 1

$ \imples y = 2\bigg(\frac{-2}{3}\bigg) - 1 $

$ \implies -\frac{4}{3} - 1 $

$ \implies y = -\frac{7}{3} $

So, we get the corresponding values of x and y which is the solution of the two equations.

4 0
3 years ago
How to determine if the slope is negative or positive if your not looking at a graph
ozzi
If there is only positive numbers it is positive if there is a positive and a negative it is a negative if it is a negative and a negative the slope will be positive if this helps mark brainiest
6 0
3 years ago
What are the steps to solving a quadratic equation
Bogdan [553]
1.Write equation
2.Factor completely
3.Apply a zero product rate
4.solve linear equations in step 3

5 0
3 years ago
H(j) = -j^2-6j+2 when h(3)
lawyer [7]

Answer:

-25

Step-by-step explanation:

h(j) = -j^2-6j+2 Let j =3

h(3) = -3^2-6(3)+2

      = -9 -18+2

     = -27+2

     = -25

7 0
4 years ago
16
shtirl [24]
The answer is d that’s the right one
6 0
3 years ago
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