Choose the equation that has b=7, explain how you know below. (Select all that apply.)
y= 2x + 3r2
+7
y=3x + 7.72 +2
y = 7x + 2x2 + 2
not listed

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

step-by-step explanation:

a 90 degree rotation across the the origin followed by a reflection across the x-axis.

step-by-step explanation: