Multiply both sides by 45
40=1350+a
Subtract 1350 from both sides, get answer
-1310=a
Answer: 3
Step-by-step explanation: the absolute value of the number before the sin/cos wave is always the amplitude of the function.
Here, it is the abs(-3)=3
The y-axis usually represents height and the x-axis represents time, so I am assuming that this is the correct answer.
*When dividing with a negative, the sign changes directions.
Answer:
The table not represent a proportional relationship
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
we have
For x=3, y=17
Find the value of k
----->
For x=5, y=27
Find the value of k
----->
For x=8, y=42
Find the value of k
----->
For x=9, y=47
Find the value of k
----->
The values of k are different
therefore
The table not represent a proportional relationship
<u><em>Find the slope of the line</em></u>
(3,17) and (9,47)
m=(47-17)/(9-3)=30/6=5
Find the equation of the line with m=5 and point (3,17)
y-y1=m(x-x1)
substitute
y-17=5(x-3)
y=5x-15+17
y=5x+2
This is the linear equation that represent the points in the table, but this equation not represent a proportional relationship (The line not passes through the origin)
Yes and for a. You can just put y=x [y=1x is bascually the same but just the 1 isnt needed]