First convert the feet to inches:
3 feet= 36 in.; 4 feet=48 in.
Make an equation for each one:
Type A: h=36+15x
Type B: h=48+10x
Since the questions wants the heights to be equal, h=h so you can substitute so you have:
36+15x=48+10x
5x=12
x=2 2/5 years or 2.4 years
Answer:
The answer to your question is:
Domain [0, 8)
Range [-3, 1]
f(0) = -3
Step-by-step explanation:
Domain: is the possible values that the "x" can take
Range: are the values that take the function when is evaluated by the independent variable (x).
For this example:
Domain [0, 8) close is zero and open in 8
Range [-3, 1] close in both sides
f(0) = -3
Joe jumped the farthest at 6 1/4 (6 ft 3 in)
Chelsey jumped the shortest ar 4 1/5 (4 ft 2.4 in)
6-4=2
3-2.4=.6
the difference is: 2 ft and 0.6 in
The point-slope form:
We have the points (3, 6) and (-2, 1). Substitute:
<h3>Answer: 4. y - 6 = 1(x - 3)</h3>
A) slope is 7 for 1 and -7 for the other. These lines intersect in 1 point only
b) both equations have slope -2/3 and the same intercept, so it is really only one line...infinite solutions
c) parallel lines have 0 solutions
