To find the vector representation between the points (5,5) and (-3,-2), we need to find the difference in the x and y components. To do this we just need to do (-3-5) and (-2-5) this gives us an i component of -8 and a j component of -7
Final answer:
v=-8i-7j
Hope I helped :)
And PS, eventually you will get to three dimensions which uses i j and k ;)
<span>Slope-intercept form is y = mx + b
m is the slope
b is the y-intercept
7x = 14y - 8
7x + 8 = 14y {added 8 to each side}
(1/2)x + (8/14) = y
slope is 1/2
A line perpendicular would have a slope of -2 {the negative reciprocal of 1/2}
#1 y = -2x - 7 {it is the only one with a slope of -2}</span>
Answer:
(0, )
Step-by-step explanation:
the way i remember is the y-intercept is always going to be 0, and the the second number
so y=3/4x+4/7 the bolded number is the answer and you will be able to use this for any other instance
so the number of positive real roots is either 4, or (4-2) 2, or (2-2) 0. And the negative real roots are only 1. Any slack gets picked up by the versatile complex twins.
4 real positive ones and 1 negative real one
or
2 real positive ones and 1 negative real one and 2 complex ones
or
0 real positive ones and 1 negative real one and 4 complex ones.
Part A: Factor 3x2y2 − xy2 − 2y2. Show your work. (4 points)
3x^2y^2 − xy^2 − 2y^2
y^2 ( 3x^2 - x -2 )
y^2 (3x+2)( x - 1)
Part B: Factor x^2 + 6x + 9. Show your work. (3 points)
x^2 + 6x + 9
= x^2 + 2*3x + 3^2
= (x+3)(x+3)
= (x+3)^2
Part C: Factor x2 − 25. Show your work. (3 points)
x^2 - 5^2
<span>(x-5)(x+5)</span>