Answer:
um 2x dos
Step-by-step explanation:
9514 1404 393
Answer:
3x +4y = -8
Step-by-step explanation:
The perpendicular line will have the x- and y-coefficients swapped, and one of them negated. The constant in the equation will be such that the given point values will satisfy the equation.
4x -3y = 18 . . . . . . given equation
3x +4y = 3(8) +4(-8) = -8 . . . . swap coefficients, used point coordinates
3x +4y = -8 . . . . . the equation of the line you want
Y=2x and y = x² - 3. To find the intersections of these 2 functions we proceed as follows:
2x= x²-3 → x² - 2x -3 =0
The zeros of this trinomial are x = 3 and x =-1
Now to find y-coordinates replace in any of the initial equation x by both values:
y = 2x . For x = 3 , y = 6
and for a = -1, y = -2
Answer:
(x+6)^2 +(y-4)^2 = 49
Step-by-step explanation:
The equation of a circle is given by
(x-h)^2 +(y-k)^2 = r^2 where (h,k) is the center and r is the radius
(x- -6)^2 +(y-4)^2 = 7^2
(x+6)^2 +(y-4)^2 = 49
Answer:
360 degrees
Step-by-step explanation:
all polygons have interior angles that add up to 360 degrees. hope this helped!