Through: (-2,-1), slope= 5/2
2 answers:
Answer:
y = x + 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 )
Here m = , thus
y = x + c ← is the partial equation
To find c substitute (- 2, - 1) into the partial equation
- 1 = - 5 + c ⇒ c = - 1 + 5 = 4
y = x + 4 ← equation of line
You might be interested in
For it to be a right triangle, it must have a right angle.
Right angles are formed by perpendicuar lines.
If we find that two of these lines are perpendicular, we will know it is a rt. triangle.
Perpendicular lines have slopes which are opposite reciprocals (like 3 and -1/3)
To find the slope between two points, use the formula
.
For line AB:
For line AC:
For line BC:
-2 and 1/2 are opposite reciprocals, so this must be a right triangle.
<em>
</em><em>Another way to do this would be to use the distance formula to find the three side lengths and see if the Pythagorean Theorem applies.</em>
Right angles are formed by perpendicuar lines.
If we find that two of these lines are perpendicular, we will know it is a rt. triangle.
Perpendicular lines have slopes which are opposite reciprocals (like 3 and -1/3)
To find the slope between two points, use the formula
For line AB:
For line AC:
For line BC:
-2 and 1/2 are opposite reciprocals, so this must be a right triangle.
<em>
</em><em>Another way to do this would be to use the distance formula to find the three side lengths and see if the Pythagorean Theorem applies.</em>