This is going to be an long answer, so I'm putting the answer first. y=3x-7
First, you have to find the equation of the line given. You can use point slope form for that. You can see that the slope is -1/3, and it goes through (2,2). So, the equation would be
y-2=-1/3(x-2)
Which simplifies to
y=-1/3x+8/3
Now, we can get on to finding the actual answer. The slope of a line perpendicular would be the negative reciprocal of the original slope. That just means you flip it and multiply it by -1. So, the slope of the new line is 3. Now you can use point slope form again and make an equation, which is
y+1=3(x-2)
Which simplifies to
y=3x-7
Please don't ask me why the slope is the negative reciprocal, or how they came up with the formula for the point slope form. I DON'T KNOW. If you want to know so bad you would give up chick-fil-A for the rest of your life, there's always google.
Answer:
Step-by-step explanation:
<u>Simplify</u>
- 6√20 + 8√5 - 5√45 =
- 6√4(5) + 8√5 - 5√9(5) =
- 6(2)√5 + 8√5 - 5(3)√5 =
- (12 + 8 - 15)√5 =
- 5√5
Bobby is right, because at x = -2, 3, and 5, the denominator of the function equals zero, which is by definition undefined.
