Answer:
x=y-2
y=x-2
Step-by-step explanation:
1.
Use the two points given in the graph, and plug them into the slope formula.
slope = m = (y2, y1)/(x2 - x1)
slope = m = (3 - 1)/(0 - 1) = 2/(-1) = -2
Another way of calculating the slope is
slope = m = rise/run
slope = m = -2/1 = -2
As you can see, both methods give you the same answer.
2.
Here you have again two given points, so use the formula.
slope = m = (-3 - 1)/(-2 - 1) = -4/(-3) = 4/3
Y= 2x+10 would be the equation and it would have no solution because there's no value if x nor y
Answer:
71°
Step-by-step explanation:
Kaia's window is in the shape of a trapezoid. Three of the angles are 80°, 100°, and 109°. What is the measure of the fourth angle?
The sum of angles in a trapezoid is equal to = 360°
We are given 3 angles in the trapezoid as: 80°, 100°, and 109°.
The measure of the fourth angle is calculated as:
360° = 80°+ 100° +109° + fourth angle
360° - (80°+ 100° +109°)
360° - 289°
= 71°
The measure of the fourth angle is 71°