Answer:
42 3/4 I think
Step-by-step explanation:
because if you simplified 342/8 it will be 171/4. so if you simplified that it'll get you to 42 3/4
Remember the shortcut way for graphing quadratic equations
- A quadratic function has graph as parabola
- Hence on both sides of vertex the parabola is symmetric and axis of symmetry is vertex x values .
- y on both sides for -x and +x is same
#1
Vertex
As a is positive parabola facing upwards
Find y for same x distance from vertex
I took 3-1=2 and 3+1=4
- f(2)=2(2-3)²-1=2(-1)²-1=2-1=1
- f(4)=2(4-3)²-1=1
Now plot vertex and these two points (2,1) and (4,1) on graph then draw a parabola by freehand
#2
- y=(x-2)(x+4)
- y=x²+4x-2x-8
- y=x²+2x-8
Convert to vertex form
Vertex at (-1,-9)
Same take two equidistant x values
Let's take -1-1=-2 and -1+1 =0
- f(-2)=(-2+1)²-9=1-9=-8
- f(0)=(1)²-9=-8
Put (-1,-9),(-2,-8),(0,-8) on graph and draw a freehand parabola
#3.
Yes it can be verified by finding the coordinate theoretically on putting them on function then can be verified through putting them on graph whether they matches or not
Answer:
(-60/11,111/11)
Step-by-step explanation:
Solving simultaneously, 4x - 3y=6
-3(6x + y=42)
then it becomes, 4x - 3y=6
-18x - 3y= 126 subtracting the two equations,
22x= -120, x= -60/11 and y = 111/11
The option that needs to be corrected in this construction of a line parallel to line AB passing through C is C: the second arc should be centered at C.
<h3>Why should the second arc be centered at C?</h3>
The second arc should be centered at C because as it crosses passing through Line C, it is seen that it was not touching or intersecting AB and so one can say that it is parallel to it.
Looking at the other lines, we will see that they are all touching AB and are not running parallel to it.
Hence, The option that needs to be corrected in this construction of a line parallel to line AB passing through C is C: the second arc should be centered at C.
Learn more about line parallel;
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Answer:
Amount of finance charge = $800
Interest rate = 5% per year
Step-by-step explanation:
Given:
Cost of item = $4,000
Per month payment = $100
Number of month = 48 month = 48 /12 = 4 year
Find:
Amount of finance charge
Interest rate
Computtaion:
Total amount pay = 100 x 48
Total amount pay = $4,800
Amount of finance charge = Total amount pay - Cost of item
Amount of finance charge = 4,800 - 4,000
Amount of finance charge = $800
Interest = P x r x T
800 = 4,000 x r x 4
800 = 16,000 x r
Interest rate = 5% per year