Answer:
34
Step-by-step explanation:
Answer:
C) x³-3x²-18x
Step-by-step explanation:
x³-6x²+3x²-18x
x³-3x²-18x
The slope of (-2, 3) & (1, 1) is ( 4, 2). The reason why the answer is (4, 2) is that if you look at a number line from left to right you'd see that -2 takes four steps to get to positive 2.
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
↑ ↑ ↑ ↑ ↑
1 2 3 4
As for the other plot, you have to think: How many times does 1 need to jump to get to 3?
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
↑ ↑ ↑
1 2
This is important to remember, the numbers to your right is your y and the numbers to your left is your x.
(-2, 3) (1, 1)
↑ ↑
y y
(-2, 3) (1, 1)
↑ ↑
x x
I hope I helped :)
Answer:
1 5 7 35
Step-by-step explanation: im a differnet breed duh
A quadratic in vertex form reads as
(<em>x</em> - <em>a</em>)² + <em>b</em>
where (<em>a</em>, <em>b</em>) is the vertex.
To get the given quadratic in this form, complete the square:
<em>x</em>² - 6<em>x</em> - 40 = <em>x</em>² - 6<em>x</em> + 9 - 49 = (<em>x</em> - 3)² - 49
Or, work backwards by expanding the vertex form and solving for <em>a</em> and <em>b</em> :
(<em>x</em> - <em>a</em>)² + <em>b</em> = <em>x</em>² - 2<em>ax</em> + <em>a</em>² + <em>b</em>
So if
<em>x</em>² - 6<em>x</em> - 40 = <em>x</em>² - 2<em>ax</em> + <em>a</em>² + <em>b</em>,
then
-2<em>a</em> = -6 → <em>a</em> = 3
<em>a</em>² + <em>b</em> = -40 → <em>b</em> = -49
