Answer:
i need help
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
it is 9/4 indeed.........
Answer:
The answer is y=-1/4x+11/16
Step-by-step explanation:
y-y=m(x-x1)
y-1=-1/4(x-(-5/4))
y-1=-1/4x-5/16
+1 +1
y=-1/4x+11/16
This is an easy half-life problem.
Every half-life, a substance loses half its radioactivity. So, after 2 half-lives, a substance will have a quarter of its radioactivity.
2 * 5,700 = 11,400 years
answer is C
The vertex is at (-3, 4)
This can be found by looking at the basic form of vertex form:
y = (x - h)^2 + k
In this basic form the vertex is (h, k). By looking at what is plugged into the equation, it is clear that h = -3 and k = 4. This means the vertex is at (-3, 4).
The y-intercept is at 13. To find this we must first square the parenthesis and get the equation into standard form.
y = (x + 3)^2 + 4
y = x^2 + 6x + 9 + 4
y = x^2 + 6x + 13
Now we know that the y-intercept is equal to the constant, which is the last number in the equation.
