Y= –3x + 6

y= 9

what is the solution to the system of equations?

(–21, 9)

(9, –21)

(–1, 9)

(9, –1)

(-1,9)

Step-by-step explanation:

To find out the solution we substitute the value of y in the first equation

given y =9

we plug in 9 for y in the first equation

Subtract 6 on both sides

Now divide both sides by -3

The value of

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).