Answer:
First option
Step-by-step explanation:
In this case we must write a quadratic equation in the vertex form.
We have the vertice. (7, 9)
We know that the vertex form for a quadratic equation is:
.
Where (h, k) is the vertex.
So if the vertex is (7, 9), the equation sought is:
Therefore the answer is the first option.
Answer:
f(x) = 2x+5
f(3) = 2(3) +5 = 6+5 =11
There fore f(3) =11
The first function is correct
Step-by-step explanation:
Given f(2) =9 and given functions are f(x) = 2x+5 and f(x) =4x+5
The fsecond function is not satisfies f(2)=9 because
f(x) = 4x+5
f(2) = 4(2)+5 = 13≠9
f(x) = 2x+5
f(2) = 2(2)+5=9
therefore first function is satifies
f(x) = 2x+5
f(3) = 2(3) +5 = 6+5 =11
There fore f(3) =11
Answer:
1200 > 42x+400
Step-by-step explanation:
We need to determine the equation of the line for the number of lilac bushes versus area
m = (y2-y1)/(x2-x1)
= (484-442)/(2-1)
= 42/1
= 42 square ft per lilac bush
Using point slope form of a line
y-y1 = m(x-x1)
y-442 = 42(x-1)
Distribute
y-442 =42x-42
Add 442 to each side
y-442+442 = 42x-42+442
y = 42x+400
This is the equation of the line
Ryan has less than 1200 square feet so our equation must be less than 1200 square feet
1200 > 42x+400
Answer:
C. Is the answer
.................................