Thursday

January 29, 2015

January 29, 2015

Posted by **jerry** on Monday, January 28, 2008 at 6:27am.

if the slope of the line is 1, what is the acute angle between the line and the x-axis?

- math -
**Christiaan**, Monday, January 28, 2008 at 7:27amThe slope of the line is 1, so a=1.

Since the slope of a line equals the tangent of the angle between the x-axis and the line, we find that:

tan(angle) = 1

So if we take the arctangent (which is the inverse of the tangent function) of 1, we find that the angle must equal 45°.

**Answer this Question**

**Related Questions**

math - how to determine the acute angle between the line 2x+3y=6 and the y axis...

Algebra - I'm suppose to write an equation with the following information: Line ...

math - graph the line with slope 1/2 passing through the point(-5,-2) find the ...

maths --plse help me.. - what acute angle does a line of slope -2/3 make with ...

maths geometry - Find and write down a proof that the product of the gradients ...

MATH! - What type of lines have a slope of zero? Write the equation of a line ...

math - A is the point (1,1), B is (4,5) and C is (5,3). Find a)the angle between...

Physics - can someone help i'm stuck on two questions??? 23. On a velocity-time ...

Calc - A line through the origin rotates around the origin in such a way that ...

Precalculus - Sorry ok I was talking about on the unit circle how come the slope...