Answer:
45°, 54°, 81°
Step-by-step explanation:
5x+6x+9x=20x
20x --> 180
x --> 9
for each angle :
5x --> 45°
6x --> 54°
9x --> 81°
Answer:
-1/4
Step-by-step explanation:
Hello!
The rate of change is also known as the slope.
Standard equation of a line: y = mx + b
- y: output
- m: slope
- x: input
- b: y-intercept
So, if we match the standard form to the given function:
-1/4 is m, or the rate of change.
A graphing calculator shows the 4th selection to be appropriate.
Y=3x+5
Gradient=3
y-y1=m(x-x1)
If the points are (7,1)
y-1=3(x-7)
y-1=3x-21
y=3x-20 as your equation
Note: when lines are parallel they have equal gradient