please hlp me

[r267747]

WHAT ACUTE ANGLE DOES A LINE OF SLOPE -2/3 MAKE WITH A VERTICLE LINE.


PLEASE HELP ME TO SOLVE THIS PROBLEM I DO'NT UNDERSTAND IT

 

[chrisr]

An acute angle (a "cute" angle) is greater than zero and less than 90 degrees.

A line slope describes the vertical "movement" if you increase position by 1 unit along the x-axis.

A slope of 3 means "if we increase x by 1, we increase y by 3 in going along that line".
A slope of -2 means "if we increase x by 1, we will end up dropping by 2 units in the vertical direction.

A formula for slope is

\(\displaystyle slope=\frac{change\ in\ y}{change\ in\ x}\)

If the slope is \(\displaystyle -\frac{2}{3}\), then..... in increasing the x position by 3, we drop by 2 in the vertical direction.

this means that in increasing x by 1, we drop by -2/3 in the y direction.

In that case you can draw a right-angled triangle against the y-axis, with the verical side 2 units and the horizontal side 3 units.
the acute angle made with the y-axis has

\(\displaystyle TanA=\frac{3}{2}\)

therefore, A can be calculated with inverse tangent

 

[r267747]

An acute angle (a "cute" angle) is greater than zero and less than 90 degrees.

A line slope describes the vertical "movement" if you increase position by 1 unit along the x-axis.

A slope of 3 means "if we increase x by 1, we increase y by 3 in going along that line".
A slope of -2 means "if we increase x by 1, we will end up dropping by 2 units in the vertical direction.

A formula for slope is

\(\displaystyle slope=\frac{change\ in\ y}{change\ in\ x}\)

If the slope is \(\displaystyle -\frac{2}{3}\), then..... in increasing the x position by 3, we drop by 2 in the vertical direction.

this means that in increasing x by 1, we drop by -2/3 in the y direction.

In that case you can draw a right-angled triangle against the y-axis, with the verical side 2 units and the horizontal side 3 units.
the acute angle made with the y-axis has

\(\displaystyle TanA=\frac{3}{2}\)

therefore, A can be calculated with inverse tangent

Sorry, i don't understand your answer

 

[BigGlenntheHeavy]

PLEASE HELP ME TO SOLVE THIS PROBLEM I DO'NT UNDERSTAND IT

Please help me! Please help me! Please help me!

What is your problem? Are you drowning or have you fallen and can't get up.

 

[r267747]

An acute angle (a "cute" angle) is greater than zero and less than 90 degrees.

A line slope describes the vertical "movement" if you increase position by 1 unit along the x-axis.

A slope of 3 means "if we increase x by 1, we increase y by 3 in going along that line".
A slope of -2 means "if we increase x by 1, we will end up dropping by 2 units in the vertical direction.

A formula for slope is

\(\displaystyle slope=\frac{change\ in\ y}{change\ in\ x}\)

If the slope is \(\displaystyle -\frac{2}{3}\), then..... in increasing the x position by 3, we drop by 2 in the vertical direction.

this means that in increasing x by 1, we drop by -2/3 in the y direction.
Sorry, for disturbing you
In that case you can draw a right-angled triangle against the y-axis, with the verical side 2 units and the horizontal side 3 units.
the acute angle made with the y-axis has

\(\displaystyle TanA=\frac{3}{2}\)

therefore, A can be calculated with inverse tangent

PLEASE HELP ME TO SOLVE THIS PROBLEM I DO'NT UNDERSTAND IT

Please help me! Please help me1 Please help me1

What is your problem? Are you drowning or have you fallen and can't get up.

 

[chrisr]

Don't worry r267747,

I'll draw some diagrams later.

 

[chrisr]

[attachment=0:1iq57r4j]bisectors.jpg[/attachment:1iq57r4j]

Here's one, does this make sense?