Which of the following equations represents a line that is perpendicular to y --4x+9 and passes through the point, (4,5)?
A. y=1/4x+5
B. y=-4x+4
C. y=1/4x+4
D. y=1/4+6

C. y=1/4x+4

Step-buy-step explanation:

y = -4x + 9

slope = m = -4

slope of perpendicular lines: m1 + m2 = -1

so the new slope will be 1/4

then use slope point equation again it does not matter which point you use

y - y1 = m ( x - x1 )

y - 5 = 1/4 ( x - 4)

y = 1/4x -1 +5

y = 1/4x +4

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.