Y = 4/9x - 2....the slope here is 4/9, but for a perpendicular line, we need the negative reciprocal. All that means is " flip " the slope and change the sign.
So the slope we need to use is -9/4
y = mx + b
slope(m) = - 9/4
(4,3)...x = 4 and y = 3
now we sub and solve for b, the y int
3 = -9/4(4) + b
3 = - 9 + b
3 + 9 = b
12 = b
so ur perpendicular line is :y = -9/4x + 12
Answer:
1782 tiles
Step-by-step explanation:
Given that:
Dimension fo floor = 132 x 216 inches
Area of floor = 132 * 216 = 28512 in²
Dimension of tiles = 4 * 4 inches
Area of tiles = 4 * 4 = 16 in²
Number of tiles needed to cover floor :
Area of floor / Area of tiles
28512 in² / 16 in²
= 1782 tiles
Answer:
the answer is c hope it help
