Answer:
y = - 2x + 8
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 
x - 9 ← is in slope- intercept form
with m =
given a line with slope m then the slope of a line perpendicular to it is
= - 
= - 
= - 2
y = - 2x + c ← is the partial equation
to find c substitute (3, 2 ) into the partial equation
2 = - 6 + c ⇒ c = 2 + 6 = 8
y = - 2x + 8 ← equation of perpendicular line
Answer:
x=21
Step-by-step explanation:
Notice the right angle. Perpendicular to it on the right, we have two complementary angles, 25, and 3x+2 (you can ignore the parentheses basically). Because they are complementary angles, they will add up to 90, so we can make an equation to solve for x:
25+3x+2=90
3x+2=65
3x=63
x=21
So x=21 is the correct answer. Let me know if you have any questions about my explanation.
Answer:
regular polygon:
E & C
irregular polygon:
A & B
Not polygon:
D & F
Explanation:
<em>regular</em><em> polygon</em><em>:</em><em> </em>
has equal sides however the number of side and regular shape and it has equal angles between its sides. <em>"</em><em>ex"</em><em> </em><em>(</em><em>equilateral</em><em> </em><em>triangle</em><em>)</em>
as in figure C & E.
<em>Irregular</em><em> </em><em>polygon</em><em>:</em>
the opposite of regular polygon but both has a straight line all over the shape. as in figure B & A.
not a polygon:
it's may be a circle or a part of it.as in figure D & F.
The coefficient of x^2 is positiv so the parabola opens upwards.
whritten in vertex form its ( x + 2)^2
so the line of symmetry is x = -2 and the vertex is at (-2,0)
and as uts y>0 the curve will be dashed.
and the shading will be inside
so all are true except the last one
Answer:
<h2>
The Parallelogram</h2>
Step-by-step explanation:
A parallelogram has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same). NOTE: Squares, Rectangles and Rhombuses are all Parallelograms!
Also, we have two pairs of parallel sides: is parallel to , and is parallel to . So it is a parallelogram or a rhombus. Since the length of the sides are not equal, the quadrilateral is a parallelogram.
Example:
(is in the picture)
