Answer:
Step-by-step explanation:
The first parabola has vertex (-1, 0) and y-intercept (0, 1).
We plug these values into the given vertex form equation of a parabola:
y - k = a(x - h)^2 becomes
y - 0 = a(x + 1)^2
Next, we subst. the coordinates of the y-intercept (0, 1) into the above, obtaining:
1 = a(0 + 1)^2, and from this we know that a = 1. Thus, the equation of the first parabola is
y = (x + 1)^2
Second parabola: We follow essentially the same approach. Identify the vertex and the two horizontal intercepts. They are:
vertex: (1, 4)
x-intercepts: (-1, 0) and (3, 0)
Subbing these values into y - k = a(x - h)^2, we obtain:
0 - 4 = a(3 - 1)^2, or
-4 = a(2)². This yields a = -1.
Then the desired equation of the parabola is
y - 4 = -(x - 1)^2
Answer:
3x = 5
Step-by-step explanation:
9x = 4x + 5
-4x -4x
3x = 5
$26.95 x 3 days= $80.85
$150.00 - $80.85 = $69.15
$69.15/.32 = 216 miles
Answer:
18.84 cm
Step-by-step explanation:
Circumference is pi * diameter so 18.84 cm
3 times 5 plus 2 would best explain the difference or you could say 3 times 3 plus 1 the difference is 1
