Answer:
The line passing through points (1,4) and (4,3).
The line passing through points (1,-4) and (4,-5).
Step-by-step explanation:
Since the equation is y=3x+1
If it was perpendicular, it means the slope would be the negative reciprocal.
So the slope would be -1/3
9-8/6-3=1/3 (not negative) <u>No</u>
3-4/4-1=-1/3 <u>Yes</u>
-5+4/4-1=-1/3 <u>Yes</u>
6-3/5-4= 3/1 <u>No</u>
Answer:
r= -4
Step-by-step explanation:
subtract 4 from both sides of the equation:
4r=16
simplify:
r= -4
The attached picture contains the formula for the area of a triangle. It applies to all triangles.
Answer:
The tree is 15 feet tall.
Step-by-step explanation:
Given that:
Height of tree last year = 5 feet tall
Height of tree this year = Height of Pedro's house - 2 feet
Height of Pedro's house = 17 feet
Height of tree this year = 17 - 2
Height of tree this year = 15 feet
Hence,
The tree is 15 feet tall.
