12. which equation is an identity? a. 11 - (2v + 3) = -2v - 8 b. 5w + 8 - x = 6w - 2(w - 4) c. 7m - 2 = 8m + 4 - m d. 8y + 9 = 8y - 3 13. which equation has no solution? a. 5v + 3 = 5v - 5 b. 2x - 4 = 2x + 7 - x c. 2y + 5 - y = 2y - 3(y - 6) d. 7z + 9 = -7z - 6

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.