Simplify. Combine like terms
12x - 9x = 3x
7 - 15 = -8
3x - 8 is your answer
hope this helps
<em>Your answer would be, </em><em>3x - 8.</em>
Thanks,
<em>Deku ❤</em>
Answer:
b
Step-by-step explanation:
100%
At the top of the graph.
x = -5/2
From the quadratic equation
the axis of symmetry for quadratics of the form
y = ax² + bx + c is
x = -b/2a
x² + 5x + 9