Please help i am being timed!!!!!!

For what value of k are the lines parallel? 2x+ky=3 X+Y = 1

raketka [301]

Ky=-2x+3 and y=-2x/k+3/k
y=x-1

k=2 because coefficient for x must be -1.

5 0

4 years ago

Which equation in standard form has a graph that passes through the point (5, −2) and has a slope of 72 ?

aalyn [17]

Given:

Consider the graph passes through the point (5, −2) and has a slope of $\dfrac{7}{2}$ .

To find:

The equation of graph in standard form.

Solution:

Point slope form of a line is

$y-y_1=m(x-x_1)$

where, m is slope and $(x_1,y_1)$ is the point lies on the line.

Slope is $\dfrac{7}{2}$ and graph passes through (5,-2), so the equation of line is

$y-(-2)=\dfrac{7}{2}(x-5)$

$y+2=\dfrac{7}{2}(x-5)$

Multiply both sides by 2.

$2(y+2)=7(x-5)$

$2y+4=7x-35$

$4+35=7x-2y$

$39=7x-2y$

The required equation is $7x-2y=39$ .

Therefore, the correct option is B.

4 0

3 years ago

Please help me. Step by step please will reward brainiest.

sergij07 [2.7K]

Answer:

I don't know the exact answer because I'm 13 but does this help at all? Sorry about before...

Step-by-step explanation:

1. The domain D and range R of the given function are given by: D: (- ∞ , + ∞) and R: (- ∞ , + ∞)

2. In order to find the inverse, we first write the function as an equation as follows. ...

3. Then solve it starting by cubing both sides. ...

4. Simplify and solve for x. ...

5. Change x into y and y into x to obtain the inverse function.

7 0

3 years ago

Can someone help me find this answer then explain it for me! Thank you

atroni [7]

Answer:

sorry i dont know

Step-by-step explanation:

5 0

4 years ago

What is the equation for the line with a slope of

Nookie1986 [14]

Answer:

What is the smallest angle of rotational symmetry for the regular octagon?

°What is the smallest angle of rotational symmetry for the regular octagon?

°

Step-by-step explanation:

What is the smallest angle of rotational symmetry for the regular octagon?

°What is the smallest angle of rotational symmetry for the regular octagon?

°vWhat is the smallest angle of rotational symmetry for the regular octagon?

°What is the smallest angle of rotational symmetry for the regular octagon?

°

4 0

2 years ago