Answer:
d. f opens upward with a y-intercept at (0, 2); h opens downward with a y-intercept at (0, -2)
Answer:
Hello
Step-by-step explanation:
Answer:
a = -1
Step-by-step explanation:
The line of symmetry for the parabola given by ...
y = ax² +bx +c
is
x = -b/(2a)
Using the given values, we have ...
-2 = -(-4)/(2a)
Multiplying by -a/2, we get ...
a = (4/2)(-1/2) = -1
The value of "a" is -1.
Based on the given data the margin of error for the sample population is 6.15. This is computed based on the formula of margin of error for a sample proportion which states that the margin of error (z) is = squareroot of ((p(p-1))) divided by n, where p is the sample and n is the population. with that formula z = sqrt ((44x43)/50), z = 6.15
