The cost will be 9 for 1 pencial
The slope of that line is -1, so m = -1.
The point you were told to use is (-2,2), so point-slope form starts as:
( y - 2 ) = -1 • ( x - (-2) )
But we'd clean up that x-(-2) to be x+2.
y - 2 = -1 ( x+2 )
Answer:
Step-by-step explanation:
A) We use this relation: Distance = time * speed ( speed or vitesse or rate)
So d= 3.4*t= 3.4t (miles)
B) If t= 5/8
then the distance d= 3.4* 5/8= 2.125 miles.
C) If the distance d= 5.44, we can find the time like:
d= 3.4*t, and we know d=5.44
so 5.44= 3.4*t or t = 5.44/3.4, t= 1.6 hours
Hope you understand it.
Answer:
x = 4
Step-by-step explanation:

Answer: 
Step-by-step explanation:
Since the general quadratic equation is,

Here the given table is,
x 1 2 3 4 5 6 7
y 5.9 8.9 13.4 20.1 30.1 45.1 67.7
By the graphing calculator,
a = 1.87024 ≈ 1.87
b= -5.15833 ≈ -5.15
c = 10.5429 ≈ 10.54
By putting the values of a, b and c,
The required quadratic equation is,

⇒ First Option is correct.