I can't directly tell you the answer, but I can help you for how to do it.
So every single time you want to find the rate of change (slope) label 2 points with x1, y1, x2 and y2. We can use the point-slope form to sind the slope:
y1-y2/x1-x2
And we just need to plug in the point to get the Y intercept.
When the x is 0, the y value will be the y-intercept.
The slope intercept form is: y=Mx+B. M stands for slope and B stand for y-intercept. Just plug the slope and y-intercept in and get the answer.
Answer:
The amplitude is 1/5
Step-by-step explanation:
Given

Required
Determine the amplitude
The general cosine function is:

Where

Compare
and 

So:


Answer:
1
Step-by-step explanation:
3x-6>-3 =
3x>3 =
x=1
6 CM would make it 60mm because you would do length timeth width
Answer:
yes
Step-by-step explanation:
The triangle inequality requires the sum of the two short sides exceed the long side.
6 +14 = 20 > 18
The triangle inequality is satisfied by these numbers, so they could be the side lengths of a triangle.