28+24=2(12+14)
Hope this helps <3
Answer:
Simplifying
(n + 9) + -1(2 + -2n) = 0
Reorder the terms:
(9 + n) + -1(2 + -2n) = 0
Remove parenthesis around (9 + n)
9 + n + -1(2 + -2n) = 0
9 + n + (2 * -1 + -2n * -1) = 0
9 + n + (-2 + 2n) = 0
Reorder the terms:
9 + -2 + n + 2n = 0
Combine like terms: 9 + -2 = 7
7 + n + 2n = 0
Combine like terms: n + 2n = 3n
7 + 3n = 0
Solving
7 + 3n = 0
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 3n = 0 + -7
Combine like terms: 7 + -7 = 0
0 + 3n = 0 + -7
3n = 0 + -7
Combine like terms: 0 + -7 = -7
3n = -7
Divide each side by '3'.
n = -2.333333333
Simplifying
n = -2.333333333
Step-by-step explanation:
Answer:
(a) upward
(b) (-2, -4)
(c) -2 = x
(d) x-intercept(s): (-6, 0), (2, 0)
y-intercept: (0, -3)
Step-by-step explanation:
(a) It clearly opens up at a minimum point of -4.
(b) It is the centre point of your parabola.
(c) Take the x-coordinate of your vertex and set it equal to <em>x</em><em>.</em>
(d) X-intercepts [Zeros, or roots] are where they intersect the x-axis on both ends of the parabola, and according to the graph, they intersect the x-axis at <em>the</em><em> </em><em>above</em><em> </em><em>answers</em><em>.</em>
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