Answer:
x = 1.5
Step-by-step explanation:
Since the axis of symmetry is between the 2 x intercepts, we can find it by finding the average of the x-coordinates of the 2 points.
(-7 + 10) / 2
3/2
= 1.5
So, the axis of symmetry is at x = 1.5
The score set above has no mode
This is because mode is a measure of what score occurs the most
In this score set no numbers occur more than once
Answer:
Step-by-step explanation:
Given
Required
Determine the period
A sine function is represented as:
Where
By comparing:
and
So:
So, we have:
Hence, the period of the function is 
Answer:
72 in
Step-by-step explanation:
We know that 120 in is equal to the sum of the given height expressions.
(9x) +(7x-8) = 120
16x = 128 . . . . . . add 8 and simplify
x = 8 . . . . . . . . . . divide by 16
9x = girl's height = 9·8 = 72 . . . . inches
The height of the girl is 72 inches.
Answer:
C
Step-by-step explanation:
First, note that the parent quadratic function has the equation 
.
All quadratic functions are parabolas. Eliminate A.
The vertex of is on the origin point (0,0), <em>not</em> in Quadrant III. Eliminate B.
is definitely a function. Eliminate D.
The correct answer is C. The function covers Quadrant I and II.
