Which of the following equations best represents the graph of f(n)?
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
The goal to solving any equation is to have x = {something}. That means we need to get the x out from underneath that radical. It's a square root, so we can "undo" it by squaring. Square both sides because this is an equation. Squaring both sides gives you
Get everything on one side of the equals sign and set the quadratic equal to 0:
Throw this into the quadratic formula to get that the solutions are x = 5 and -8. We need to see if only one works, both work, or neither work in the original equation.
Does ?
and
and 5 = 5. So 5 works. Let's try -8 now:
and
so
-8 = 8? No it doesn't. So only 5 works. Your choice is the third one down.
Given equation is y=2x+7 and
Let's simplify the 2nd equation before we can start graph so that calculation will be easy
multiply both sides by 2 to cancel out fractions
y=2x+7
which is exactly same as the first equatoin so graph of both will be exactly same and solution will be infinitely many solutions.
y=2x+7 has y-intercept 7 so first point will be (0,7). Slope is 2 so rise 2 unit up then 1 right and graph the new point.
Answer:
<em>Hope </em><em>this </em><em>helps </em><em>you </em><em>mate </em><em>~♥~</em><em>ฅ(๑*▽*๑)ฅ!!</em><em>ฅ(๑*▽*๑)ฅ!!</em><em>Ｏ(≧▽≦)Ｏ</em><em>Ｏ(≧▽≦)Ｏ</em><em>Ｏ(≧▽≦)Ｏ</em><em>(≧∇≦)</em><em>(≧∇≦)</em><em>(≧∇≦)</em><em>Ｏ(≧▽≦)Ｏ</em><em>Ｏ(≧▽≦)Ｏ</em><em>(○ﾟεﾟ○)</em>
