Answer:
y=4x
Step-by-step explanation:
The line goes through the points (0, 0) and (2, 8).
You can plug these in to the slope formula, and the slope is 4
Since the line intersects the y-axis at 0, the y-intersect is 0.
Using these two pieces of information, you now know that the equation is
y=4x+0, or y=4x.
Hope this helps!
Answer:
10x-3
Step-by-step explanation:
Answer:
Which x are you talking about?
Answer:
First graph
Step-by-step explanation:
Start by determining the y-intercept. Letting x = 0 yields f(0) = 2(1) = 2. This exponential graph must pass through (2, 0). This eliminates both the second and the fourth answer choices.
Looking at the first graph, we see that (1, 6) is on the graph. Does this agree with f(x) = 2(3)^x evaluated at x = 1? Is f(1) = 2(3)^1 = 6? YES. So the first graph is the correct one for f(x) = 2(3)^x.
