All possible combinations:
{HH, HT, TH, TT}
Outcomes if the second toss is tails:
{HT, TT}
Y - (-1) = ⁻⁵/₇[x - (-4)]
y + 1 = ⁻⁵/₇(x + 4)
y + 1 = ⁻⁵/₇(x) - ⁵/₇(4)
y + 1 = ⁻⁵/₇x - 2⁶/₇
- 1 - 1
y = ⁻⁵/₇x - 3⁶/₇
Answer:
y=2
-7x-4
three linear equations
c=-4 ;4a+b=1 ; 9=a-b
Step-by-step explanation:
Simply assume a standard parabola equation y=a
+bx +c
(here a, b, c are three independent variables)
Three coordinates as shown in graph are (0,4), (4,0) ,(-1,5)
Now put these points in the equation of parabola and get three linear equations.
[1] c=-4
[2] 4a+b=1
[3] 9=a-b
Now substitute value of a from equation 2 into 3 in terms of b
a= 
9=
-b
b=-7
a=2
y=2
-7x-4
Answer:
y = 5x - 4
Step-by-step explanation:
5 is the slope so it goes in front of the x and -4 is the y Intercept so it goes last.
Answer:
C.
Step-by-step explanation: