Answer:
Step-by-step explanation:
Define the <em>rate</em><em> </em><em>of</em><em> </em><em>change</em><em> </em>[<em>slope</em>]:
-y₁ + y₂\-x₁ + x₂ = m
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Points B, C, G, and H represent the equation.
I would have figured this out by graphing the line.
y= -2x + 5
2x represents the slope and 5 represents where the line crosses the y-axis, aka the y-intercept.
So you can start at point (0,5) and then go down 2, right 1 (-2/1 = -2), connect those points to make a line and then see which points are on the line.
You could have also plugged each point's x-coordinate into the equation and see if the answer results in its y-coordinate or not.
To work this out, you find out how many triangles can fit into the shape.
To do this, you take the number of sides and subtract it by 2.
So in a polygon with 11 sides, there are:
9 triangles (<em>11 - 2 = 9)</em>
Remember, the total number of angles in one triangle is <u>180 </u>degrees.
So to work out the total number of angles in a polygon, you multiply the <u>number of triangles</u> in it by <u>180</u>.
So the total sum of interior angles in a polygon with 11 sides is:
180 x 9 = 1620 degrees <em>(180 degrees times number of triangles)</em>
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Answer:
1620 degrees
Answer:
x = 2
y = -5
Step-by-step explanation:
2x - y = 9
y = x - 7
2x - y = 9
2x - (x - 7) = 9
2x - x + 7 = 9
x + 7 = 9
x = 2
y = x - 7
y = 2 - 7
y = -5