Given:
The graph of a parabola.
To find:
The equation of the parabola.
Solution:
From the given graph, it is clear that the vertex of the parabola is at point (0,0) and it is a horizontal parabola.
The general equation of a horizontal parabola is:
Where, a is a constant.
If a<0, then the parabola opens left and if a>0, then the parabola opens right.
Equations in options B and D are of the form but a<0 in option B and a>0 in option D.
In the given graph the parabola opens right, so the value of a mus be a positive number. So, the required equation is:
Therefore, the correct option is D.
Answer:
B. y=12x
Step-by-step explanation:
x = # of books bought
so then y=12x
Answer:
y = -1x + 3 or y = -x + 3 (**That is the last option which is D**)
Step-by-step explanation:
You need to do slope-intercept formula and the slope formula.
The Slope-Intercept Formula: y=mx+b
The Slope Formula: y2 - y1 / x2-x1
Your coordinates:
(-1,4) and (1,2)
2 - 4/1- (-1)
-2/2
Simplified is -1
Your "m" in the slope-intercept formula is -1
Formula: y=-1x + b
Now, you need to find the Y-Intercept which is the "b"
Using our slope-intercept formula, you need to plug in "x1" and "y1"
4 = -1(-1) + b
4 = 1 +b
4-1 = b
3 = b
So your equation is:
y = -1x + 3 or y = -x + 3
Answer:
C. Write the numbers 1 through 6 on slips of paper. Select one slip at random.
Step-by-step explanation:
beacuse everyone will pick up a random number :3
2 2 2 2 2 22 2 2 22 2 2 2 2 2 2 2 2 2 2
its 2.
