The value of scale k is 3
Step-by-step explanation:
In order to find the scale , we can either divide the coordinates of H' by the original point or compare both the points to find the original ordered pair.
Given
H(3,4)
H'(9,12)
The coordinates of H are multiplied with some integer k to form H'
So,
<u>For x-coordinate:</u>
3k = 9
k = 9/3 = 3
<u>For y-coordinate:</u>
4k = 12
k = 12/4 = 3
Hence,
The value of scale k is 3
Keywords: Coordinate geometry, scaling
Learn more about scaling at:
#LearnwithBrainly
Answer:
If you said its the height it would be 21
Step-by-step explanation:
The height is on the side
Answer:
( -1,2)
Step-by-step explanation:
The solution is where the two lines intersect
The intersect at x=-1 and y=2
( -1,2)
Answer:
C
Step-by-step explanation:
Using the rule of radicals
×
⇔ 
Simplifying each radical before combining them.

=
=
×
= 3
-----------------------------------------------------------------------------

= 
=
×
= 5
---------------------------------------------------------------------------
Hence
2(3
) - 3(5
= 6
- 15
= - 9
→ C
The quickest way to tell if a line is perpendicular is to find the slope, so you'll need to get the slope for both lines
PQ = ((-8) - (-9))/(2 - 0) = 1/2
and, for reference, a perpendicular slope is the negative reciprocal of the original (so we're looking for -2)
RS = (3 - 4)/(3 - 1) = -1/2
so, no, these two lines aren't perpendicular because the slope of RS is only the negative of PQ, not the negative <em>reciprocal</em>.