If we divide 12.6/4.5 by 3 we receive 4.2/1.5. So yes they are proportional. <span />
Okay, so this is exponential. The formula for the exponental function is Y=ab^x
a is the y-intercept
b is the rate/ratio
x is the time
According to the graph, (remember the y-intercept is in the y-axis) so 2 is the y-intercept.
Knowing what the y-intercept is, you know what the answer is.
A.
Answer:
b = 14.6
Step-by-step explanation:
From the looks of it, this is law of sines.
So I'll set it up like so:
b / sin(90) = 12 / sin(55)
b / sin(90) = 14.649
b = 14.6
Remember that (x, y). It's very easy. get your grid board and plot point A (2, 5) and B (2, 3). Once you've plotted them, count how many units it is from unit A to unit B. The answer is 2 so it's 2 ft from point A to point B.