у Bernadette says that the plotted point is located at (-5, -43). What is Bernadette's error? 4 2 She switched the x-and y coordinates, O Both coordinates should be positive values, O The x-coordinate should be 5. -4 -2 2 4 1 The y-coordinate should be -3 2 -2 -4 Intro Done ity. com/ContentViewers/FrameChain/Activ ity#_

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0