1}write an equation of the line with x-intercept -3 and y-intercept -5
2)write an equation of the vertical line through (4, -2)
3)i^17
4)write an equation of the perpendicular bisector of the segment joining the points (7,0) and (1,8)
5) 29cents for 3x5 print, 39cents for a 4x6 print, 55cents for a 5x7 print. Find a quadratic function of the form f(x)=ax^2+bx+c that models the cost per print in terms of the smaller dimensions of the print size.
6)evaluate 2^5x2^-4/2^-2
Answers:
1.do your own ******* homework
2.pay attention in class so you can do your own homework.
Its summer.. why do you need to know?? I forgot everything, No more algebra for me!!
Im only gonna give you number 2 k y=x-6
2) is really easy. but I have to draw it so.
3) =i !!
6) 2048
hope I helped you a bit :)
http://www.sosmath.com/ could help you
For number 1 you start with the general formula for a line y=mx+b where b is your y-intercept (-5 here) and m is the slope. There are a couple ways you could find m. You know that at the x-intercept the value of y is zero. So put those things in...
y=0
m=?
x=-3
b=-5
0=m(-3)-5
5=-3m
(-5/3)=m
So y=(-5/3)x - 5
For 3, there are simple rules for imaginary numbers.
i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1
And that repeats through such that
i^5 = i
i^6 = -1
i^7 = -i
i^8 = 1
...
I think the website up there could help you... it has a search too
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