Answer:
C, √45
Step-by-step explanation:
First, we can use process of elimination to get rid of A and D, since we know we're looking for a range, and only the highest or the lowest number is going to be outside of that range.
Now we simply have to run the remaining answers through our calculators. √62 is 7.87 and √45 is 6.71. Since 7.87 is between 7 and 8 and 6.71 is not, C must be our answer.
A) h(x) = g(x) + 30
The term g(x) represents the cost of the cable service minus the startup fee. Also, B, C, and D choices do not represent $30 as a one-time startup fee, so they are immediately wrong answers.
Good luck!
Answer:
A parabola has the form:
y = a*x^2 + b*x + c
Where a is the leading coefficient.
If a is positive, the parabola opens up.
If a is negative, the parabola opens down.
a is the factor that multiplies the part that grows the fastest in the equation, thus, if a is a larger value (in absolute value) then the parabola will grow faster (then the parabola will be narrow)
if a is smaller (again, in absolute value) the parabola will grow slower, then the parabola will be wider.
With this, we can conclude that:
a = -4
is the largest value of a in absolute value.
Then this corresponds to the thinner parabola (the one at the left)
a = -1
Is the middle value of a, then this corresponds to the graph of the middle
a = -0.25
Is the smallest absolute value of a, then this one corresponds to the widest graph (the first one at the left)
