-73.35. You have to use the distributive property and multiply -9 x 8.15
F(x)=2x^2-x
f(-3)=2(-3)^2-(-3)
f(-3)=2(9)+3
f(-3)=18+3
f(-3)=21
Answer:
(-3,0)
Step-by-step explanation:
the vertex is where the quadratic function reaches its maximum or minimum height and as you can see on this graph the maximum height of this equation is at the (-3,0) point meaning that (-3,0) is the vertex
The perpendicular line of x=4 should be whatever the value of y is in the given point, that means y=5