Answer:
a) cannot be determined
b) a triangle can be drawn, but its dimensions cannot be determined
Step-by-step explanation:
<h3>a)</h3>
The vertical axis is labeled in units of kilometers. The horizontal axis is labeled as distance, with no units given. The line shown appears to descend from 12 units above ground level over a distance of 34 units along ground level. One could argue the slope is 12/34 = 6/17, but there is no indication the horizontal units are the same as the vertical units.
The slope of the graph cannot be determined, because we don't know the horizontal units.
__
<h3>b)</h3>
You can draw the triangle, but you cannot determine its dimensions.
- - We are finding the value of "X"
"x" Is representing an unknown number, one that we must solve to find.
• The first step is going to be distributing our equation. 
↓ ↓ ↓ ↓ ↓

• Now we are going to do like terms by combining them.


• Now need to add "1" to both sides of our equation to get our final answer.
- - Final answer; x =
Answer:
99cm^2
Step-by-step explanation:
When finding an area of a triangle, you multiply base times height and then divide by 2.
In this case,
Height:11
Base: 18
So then apply the formula:

Solve (using a calculator lol)
We get 99
Don't forget units!
So the final answer is 99cm^2
Answer:
JK = 18 also
Step-by-step explanation:
Answer: Parallel: y=-2/7x-2 1/7 Perpendicular: y=7/2x+13
Step-by-step explanation:
2x+7y=14
Subtract 2x from both sides.
7y=-2x+14
Divide both sides by 7 to isolate y.
y=-2/7x+2
Parallel:
Plug in x and y with same slope as the original.
-1=-2/7(-4)+b
Solve for b:
-1=8/7+b
-2 1/7=b
y=-2/7x-2 1/7
Perpendicular:
Plug in x and y with the negative inverse of the original slope.
-1=7/2(-4)+b
Solve for b.
-1=-28/2+b
-1=-14+b
13=b
y=7/2x+13