B) draw the graph of y=-x^2+2x+1 on the grid below -3<x<5
-14<y<4

c) use your graph to find the solutions to the equations
-x^2+2x+1=0

d)i) on the grid, draw the line of symmetry of the graph
ii) write down the equation of this line of symmetry

e)i) draw the line y=-2 on the grid
ii) write down the coordinates of the interception of the two graphs.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63

it is only things thain can be deafeated

step-by-step explanation: