No problem. Since the - and + cancel and become a -, you get
3-4
which is -1
Hope this helped.
To solve this problem you must apply the proccedure shown below:
To m<span>atch each equation with its y-intercept x must be zero, so you have:
x=0 and solve for y, as following:
1) cx+by=a (0,a/b)
y=a/b
2) bx+ay=c (0,c/a)
y=c/a
3) ax+by=c (0,c/b)
y=c/b
4) cx+ay=b (0,b/a)
y=b/a
</span>
Answer:
B
Step-by-step explanation:
The answer is ''B'' cause it is the only true statement
In the attachment is a graph of the cosine function that represents changing of the tide.
y max = 10 ft at midnight
y min = 5 ft at 6 AM
(0,5)(3,-1)
slope = (-1 - 5) / (3 - 0) = -6/3 = -2
y = mx + b
slope(m) = -2
(use either of ur points...(0,5)...x = 0 and y = 5
now we sub and find b, the y int
5 = -2(0) + b
5 = b
so ur line is : y = -2x + 5
