Find the coordinates of the vertex of the following parabola using graphing
technology. Write your answer as an (x, y) point.
y = 3x^2-12x + 21 it’s -1
Answer:
i believe its 9.09
Step-by-step explanation:
i did this problem 3 different ways
first i put it all in a calculator and got 9.09
then i did 0.81/0.09 = 9+ 0.81 = 9.81/9 = 1.09
finally i did 0.81/0.09 = 9 0.81/9 = 0.09
9+ 0.09 = 9.09
therefore 9.09 is what i believe the answer is
i hope this helps you!
Let the number be a
6a - 20 = 3a + 4
Group like terms
6a - 3a = 20 + 4
3a = 24
divide through by 3
a = 8
Therefore the number is 8
Answer:
4
Step-by-step explanation:
Equating the y-values gives an equation in x.
4x -10 = (x -2)^2 +2
0 = x^2 -4x +4 +2 -4x +10 . . . . . . . . eliminate parentheses, subtract 4x-10
x^2 -8x +16 = 0
(x -4)^2 = 0
x = 4
The x-coordinate of the one point of intersection is x = 4.
