Choice D!! If you’re confused the vertex is the turning point, which just so happens to be an x intercept. Knowing that you can write your equation. It bounces so it’s (X+1)^2 expand it distribute everything then distribute a negative in last bc it opens down hope this helps let me know if u have questions
Answer:
look down
Step-by-step explanation:
So basically its just asking you the change when you go to the next x-value.
In this question it looks like it is 4.
Hope this helps!
Comment if you are still confused!
A = first number (larger number)
b = second number (smaller number)
a = 8b
a - b = 70 *
* since a is the larger number and their difference is positive, we want a-b.
plug the first equation into the second to get :
a - b = 70
(8b) - b = 70
8b - b = 70
Your correct answer would be choice #2.
Answer:
x -5y = -20
Step-by-step explanation:
One way to write the equation for a line through two points is to use the slope formula. The slope is the same everywhere on a line, so the slope between the given points is the same as the slope between one of them and the general (x, y) point.
m = (y2 -y1)/(x2 -x1)
m = (5 -3)/(5 -(-5)) = (y -3)/(x -(-5))
2/10 = (y -3)/(x +5)
x +5 = 5(y -3) . . . . . . . multiply by 5(x+5)
x -5y = -20 . . . . . . rearranged to standard form