Please help on this i dont get it at all!
1 answer:
I hope this helps you out!!
We start off by drawing out the triangle on a graph! Placing points (x ,y) at
(-3, 5), (-5, -2) and (2, -2). I've included a screenshot of how the triangle should look to help you out visually!
From there, to find the area we use the equation, area = b • h.
To find the base, we subtract: -5 - 2 = -7, meaning that the base equals 7.
And to find the height, we subtract: 5 - (-2) = 7, also meaning that the height equals 7 as well.
Plugging those two numbers in the equation for area, we get:
area = 7 • 7
area = 49
area = 24.5 or 24 1/2, in this case your answer should be B.
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Your equation 
is in the form 
The vertex only relies on "a" and "b" though, so that +9 doesn't really matter in this case. The vertex of a parabola is located where
So your x-coordinate is -1. You need to find f(-1) to find your y-coordinate, and then you list it in the form (-1, y).
The vertex only relies on "a" and "b" though, so that +9 doesn't really matter in this case. The vertex of a parabola is located where
So your x-coordinate is -1. You need to find f(-1) to find your y-coordinate, and then you list it in the form (-1, y).
Answer:
Step-by-step explanation:
Use the formula for the area of a triangle,
Area of a triangle =
7). Area of the triangle =
= 74 km²
8). Area of the triangle =
= 30.8 cm²
9). Area of the triangle =
= 56 m²
10). Area of the triangle =
= 42.35 km²