Answer:
average = 12
Step-by-step explanation:
average = sum of numbers/no. of numbers
=8 + 13 + 15 /3
=36/3
=12
Answer: can I have more context?
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
Start from the y-intercept (-1). Find another point that is on the line. I am using the point (0, -1) and also (4, 2).
Next, use the slope form, rise over run. In this case, you can also use the formula (y² - y¹) / (x² - x¹).
Plug in the values, and you get 3/4. So, the slope is 3/4.
Also, you can count from one point of the line up and to the right in this problem to find the slope.
F
(
x
)
=
x
2
−
2
x
−
15
f
(
x
)
=
x
2
-
2
x
-
15
Find the properties of the given parabola.
Tap for more steps...
Direction: Opens Up
Vertex:
(
1
,
−
16
)
(
1
,
-
16
)
Focus:
(
1
,
−
63
4
)
(
1
,
-
63
4
)
Axis of Symmetry:
x
=
1
x
=
1
Directrix:
y
=
−
65
4
y
=
-
65
4
Select a few
x
x
values, and plug them into the equation to find the corresponding
y
y
values. The
x
x
values should be selected around the vertex.
Tap for more steps...
x
y
−
1
−
12
0
−
15
1
−
16
2
−
15
3
−
12
x y -1 -12 0 -15 1 -16 2 -15 3 -12
Graph the parabola using its properties and the selected points.
Direction: Opens Up
Vertex:
(
1
,
−
16
)
(
1
,
-
16
)
Focus:
(
1
,
−
63
4
)
(
1
,
-
63
4
)
Axis of Symmetry:
x
=
1
x
=
1
Directrix:
y
=
−
65
4
y
=
-
65
4
x
y
−
1
−
12
0
−
15
1
−
16
2
−
15
3
−
12
x y -1 -12 0 -15 1 -16 2 -15 3 -12
image of graph
The answer would be the 18.75 per year
Hope I helped