Question

Dont judge me on my answers Im not that good at maths I need to know the corrections . Also there’s another part . c) on a graph show the axis of symmetry of the function . Write down the equation of symmetry below.

Answer 1

Part a:

Let's factor f(x)=2x² - x -6

= (x-2)*(2x+3)

Part b: Solve for f(x) = 0

(x-2)*(2x+3) = 0

x-2 = 0

x = 2

OR

2x+3 = 0

2x = -3

x= -3/2

Part C: In a quadratic equation, such as the one given, the line of symmetry is given by:

x = -b/2a

x= -1/2*2

x= - 1/4

Bellow, you can see the graph: