Answer:
y = 5/4x
Step-by-step explanation:
The given line is written in slope-intercept form. In this form, the slope is the coefficient of x, -4/5.
The perpendicular line will have a slope that is the opposite reciprocal of this value:
-1/(-4/5) = 5/4
The simplest such line is the one that goes through the origin:
y = 5/4x
Option D:
The surface area of the design is 197 in².
Solution:
Area of the front face =
= 35 in²
Area of back face =
= 35 in²
Area of left side face = base × height
= 5 × 5
= 25 in²
Area of top face = base × height
= 5 × 5
= 25 in²
Area of bottom face = base × height
= 9 × 5
= 45 in²
Area of right side face = base × height
= 5 × 6.4
= 32 in²
Surface area of the design = 35 + 35 + 25 + 25 + 45 + 32
= 197 in²
The surface area of the design is 197 in².
Option D is the correct answer.