Answer:
a= -12
Step-by-step explanation:
because
Answer:
y = -x + 9.
Step-by-step explanation:
The slope = rise run
= 9 /-9
= -1.
The y intercept is at y = 9 so the equation is:
y = -x + 9.
Answer:



Step-by-step explanation:
Given
The attached figure


Solving (a): EF
Since m is a perpendicular bisector, then <EGF and <EGH are right-angled.
So, EF will be calculated using Pythagoras theorem which states:




Take the positive square roots of both sides


Solving (b): GH
Since m is a perpendicular bisector, then GH = FG



Solving (c): EH
Since m is a perpendicular bisector, then EH = EF



Area= length(width)
1/5=1/3(length)
Length= 1/5(3/1) or 1/5 divided by 1/3
Length= 3/5 cm
Therefore, the length of the rectangle is 3/5 cm.
Hope this helps!