I Think The answer is a I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you
Answer:
I'm not completely sure about the first one, but #8 is 0.0419, and #9 is 30500.
Answer:
4.08
Step-by-step explanation:
You would use the y-intercept and slope because y-intercept form is the easiest way to graph. you just plot the y-intercept and draw the line with the correct slope.
Answer:
"f(x) = (x + 3)(x – 7)"
Step-by-step explanation:
If the vertex is (h,k), then the quadratic is can be written in the form:
y = a (x-h)^2 + k
So it will be:
y = a(x-2)^2 - 25
Now, to find a, we need the x-intercept (which is 7), so we plug in 7 into x and 0 into y and solve for a:
0 = a(7-2)^2 - 25
0 = a(5)^2 - 25
0 = 25a - 25
a = 1
THus, we can write:
y = (x-2)^2 - 25
Expanding this, we get:
y = x^2 -4x + 4 - 25
y = x^2 - 4x - 21
y = (x-7)(x+3)
THis is correct answer.
