I know the parabola will open downward because the leading coefficient of the equation, being -5, is negative/less than zero.
Answer:
(a) x = -0.418 , -3.581
(B) c = 6.855, -1.855
Step-by-step explanation:
(A) We have given equation
On comparing with standard quadratic equation
a = 2, b = 8 and c = 3
So roots of the equation will be
(b)
a = 1, b = -5 and c= -14
So
Answer:
k = -2/5
Step-by-step explanation:
2k+9=7-3k
2k+3k=7-9
5k=-3
k=-2/5
C. (–2, –2), (1, 7), (0, 4) is the correct answer. All three solutions match.
Answer:
k>-2
Step-by-step explanation:
4k+15>-2k+3
4k-(-2k)+15>3
4k+2k+15>3
6k+15>3
6k>3-15
6k>-12
k>-12/6
k>-2