Which system of equations is represented by the graph?
a) y= x2 − 6x − 7
x − y = 1

b) y = x2 − 6x + 7
x + y = −1

c) y = x2 + 6x − 7
x − y = 1

d) y = x2 + 6x + 7
x + y = 1

D) y = x² + 6x + 7

x + y = 1

Step-by-step explanation:

Just simply substitute the solution into the equations to confirm their authenticities.

I am glad to help.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it