Two lines are perpendicular when the product between the slopes of the lines is equal to -1, then, if we have the following lines:
they will be perpendicular if,
According to the exercise, the first line is:
the slope for this line is -4.
Write the equation that makes two lines perpendicular,
solve for m2,
Answer:
The slope of the line perpendicular to y=-4x+7 is 1/4.
Answer:
(x +8)^2 +(y -15)^2 = 289
Step-by-step explanation:
The numbers 8, 15, 17 are a Pythagorean Triple, so we know the radius of the circle is 17. Filling in the given information in the standard equation of a circle, we get ...
(x -h)^2 +(y -k)^2 = r^2 . . . . . . circle with center (h, k) and radius r
(x +8)^2 +(y -15)^2 = 289 . . . . . circle with center (-8, 15) and radius 17
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Once you have identified the center (h, k)=(-8, 15) and a point you want the circle to go through (x, y)=(0, 0), evaluate the equation for the circle to find the square of the radius:
(0 +8)^2 +(0 -15)^2 = r^2 = 64+225 = 289
