HELP TIMED QUIZ For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, and
determine the y-intercept. Decide which table best illustrates these values for the equation:
y = -4x²
Table A
a
b
С
up or down
down
y-intercept
(0,0)
0
-4
0
Table B
a
b
C
up or down
y-intercept
(0,-4)
0
0
-4
down
Table C
а
b
с
up or down
y-intercept
(0,0)
-4
0
0
down
Table D
a
С
up or down
b
0
y-intercept
(0,-4)
-4
0
up

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

rotation point l

step-by-step explanation:

m∠a is 90°

m∠b is 40°