6x − y = −27
B.y = x2 − 5x + 3
6x − y = 27
C. y = x2 + 5x + 3
6x + y = −27
D. y = x2 + 5x − 3
6x + y = 27
Answer:
The correct option is C.
Step-by-step explanation:
The vertex form of a parabola is
.... (1)
Where, (h,k) is vertex.
From the given figure it is clear that the vertex of the parabola is at (-2.5, -3.25) and the y-intercept is (0,3).
Substitute h=-2.5, k=-3.25, x=0 and y=3 in equation (1) to find the value of a.
Divide both sides by 6.25.
Substitute h=-2.5, k=-3.25 and a=1 in equation (1), to find the equation of parabola.
The equation of parabola is .
If a line passes through two points then the equation of line is
The line passes through two points (-6,9) and (-5,3).
Add 9 on both the sides.
The equation of line is y=-6x-27.
Therefore the correct option is C.
Leave steps
Answer:
W=9
Step-by-step explanation:
45=9(w-4)
45=9w-36
+36. +36
81=9w
81÷9=9w÷9
9=w
Answer:45=9W-36
45+36 =9W
81 = 9W
9 = W
Step-by-step explanation:
a translation followed by a 180° counterclockwise rotation
a translation followed by a reflection
a reflection followed by another reflection