What are the vertex and x-intercepts of the graph of the function below? y= x2 - 4x- 21
O A. Vertex: (2,-25); Intercepts: x = 3, -7
B. Vertex: (2, 17); Intercepts: x= -3,7
C. Vertex: (2,-25); Intercepts: x= -3,7
O D. Vertex: (2, 17); Intercepts: x = 3, -7

C is the correct answer I used an online calculator :) hope it helps

Step-by-step explanation:

answer with step-by-step explanation:

a. ∠j is supplementary to ∠k - true:

(opposite angles of a trapezoid are supplementary which means that they add up to 180 degrees)

b. kl is parallel to jm - true:

(opposite sides are parallel to each other in a trapezoid)

c. jk is perpendicular to kl - false:

(clearly, jk does not make a right angle with kl)

d. jk is parallel to lm - false:

(jk and lm are two lines opposite in direction to each other so they cannot be parallel)

e. ∠j is congruent to ∠m - true:

(the angles on each side of the base are congruent)

f. ∠j is congruent to ∠k - false:

(the angles on the same side but opposite side of the base are not congruent)

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d