rearrange equations to form y=mx+b
use these equations to find slope and y intercepts, and match those with the right graph
slope of first: -1
slope of second: 2
y-int of first: 2
y-int of second:5
for the first one , send sin^4 (x) to L.H S and then use the identity ( a^2 - b^2 ) = (a+b)(a-b)
you will have the answer in 2 steps literally..
For second one , Add -1 on both sides , leave RHS Untouched.. On LHS , Substitute 1 as sin^2 (x) + cos^2(x) and starting solving by taking common and condensing repeatedly..
The linear equation and Erin can pick apples per hour if she maintains a constant rate.
To find the linear equation of the relationship from the graph.
We have to find the coordinates .
Let say and
Here variable is the time in hour and variable is the number of apples.
To find linear equation we have to find the slope (m) of the line by using point-slope form.
The the linear equation will be.
Number of apples Eric pick in an hour is .
By plugging the value of in the equation we can find the number of apples picked by Erin per hours subsequently for second hour.
In each hour she picks apples.
Linear equation is and number of apples picked by Eric in an hour is .
by the time the b plain leaves plain a is already at 1200miles and its moveing at a pase of 130 mph faster so every hour you add 130 till you reach 4190 wich is 23 than you devide 90 by 130 and get .6 adding.
2c + 10 = T
Since you already have to pay $10, then that would just be added.
Then it is $2 per class: 2c
So 2c + 10 = the total cost
2c + 10 = T
Hope this helped :)