1/2a - 4 = 6 try and answer this question
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Answer:
y = - 3x + 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (1, 1) and (x₂, y₂ ) = (3, - 5) ← 2 ordered pairs from table
m = =
= - 3, thus
y = - 3x + c ← is the partial equation
To find c use any ordered pair from the table
Using (3, - 5 ), then
- 5 = - 9 + c ⇒ c = - 5 + 9 = 4
y = - 3x + 4 ← equation of line
If you use the Pythagorean Theorem to find the length of the sides with A and B = to difference of X and Y of the points you'll find the lengths of the sides to be each different, therefore it is scalene. ex; difference between x coordinates of A and B is (-3 - 2) = -5, difference between y coordinates is (6 - 1) = 5, -5^2 + 5^2 = 50, sqrt 50 = 7.071, length of AB is 7.071. If two of the sides are equal in length, it is isosceles, and if all three are equal, it is equilateral.
If you don't want an explanation, it's scalene.
Here is a diagram:
If you don't want an explanation, it's scalene.
Here is a diagram: