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3 years ago

What is the answer to this question x=2y+4 y=x-2

Mathematics

1 answer:

shepuryov [24]3 years ago

4 0

Answer:

point form is (0,-2) and equation form would be x=0,y=-2

Step-by-step explanation:

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A direct variation passes through the point (-3,9) given y varies directly as x find the value of y when x is 2

frutty [35]

Answer:

y=-6

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y = kx

Where k is the constant of proportionality.

Substituting x=-3 y=9:

9 = k(-3)

$k=\frac{9}{-3}=-3$

Now the relationship is:

y = -3x

For x=2

y = -3(2) = -6

5 0

3 years ago

The zeros of a function are the values of for which the function is equal to zero. Enter a number in each blank to make true sta

olganol [36]

Answer:

Here we want to complete the blank to make the equality true:

( ) = (2 - 6)*(-4)

The equality is true if we have the same value in both sides, so we can think of this as an algebraic equation:

x = (2 - 6)*(-4)

We just need to find the value of x.

Then let's solve the right side:

x = (2 - 6)*(-4) = (-4)*(-4)

Remember the rule of signs:

(-)*(-) = (+)

x = (-4)*(-4) = 4*4 = 16

Then we need to complete the blank with the number 16

(16) = (2 - 6)*(-4)

5 0

3 years ago

Evaluate the expression. 4x−5 for x=10 Enter the correct answer in the box.

vampirchik [111]

Step-by-step explanation:

Substitute the given value of x into the expression;

$4(10)-5$

Multiply;

$40-5$

Subtract;

$35$

6 0

2 years ago

Find the y-intercept and x-intercept of the line. -x+4y = 8

salantis [7]

Answer:

x-intercept(s): ( − 8 , 0 )

y-intercept(s): ( 0 , 2 )

Step-by-step explanation:

To find the x-intercept, substitute in 0 for y and solve for x . To find the y-intercept, substitute in 0 for x and solve for y.

7 0

3 years ago

Given the geometric sequence where a1 = 2 and the common ratio is 8, what is the domain for n?

sukhopar [10]

Answer:

B. All integers where n ≥ 1

Step-by-step explanation:

We are given the geometric sequence where a1 = 2 and the common ratio is 8.

Where a1 is the first term.

we have to find the domain for n.

The general formula for the geometric sequence is:

$an=a1\times r^{n-1}$

Clearly, n can take any integer value n≥1

Hence, the correct option is:

B. All integers where n ≥ 1

3 0

3 years ago