Answer:
Slope = 3
y-intercept: 0
Step-by-step explanation:
(1,3) and (2,6)
Slope: (6-3)/(2-1) = 3/1 = 3
y-intercept: 3 - (3)(1) = 3-3 = 0
y = 3x
Answer:
30%
Step-by-step explanation:
Initial area is 40 square feet
Final area is 28 square feet
Difference between the initial and final areas will be 40-28=12 square feet
Taking the initial area as the base area and expressing the area change in percentage then the percentage decrease will be equivalent to

Therefore, the decrease in area expressed as a percentage is equal to 30%
Answer:
the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
It would have zero because the circle and line never interesect the x-axis together.
Area of a rectangle = length (l) * width (w)
A = 30ft * 20ft
A = 600 sq ft
Now the width of a sidewalk that surroundeds it = 3 ft
so now the area of the rectangle with sidewalk= 30+3ft * 20+3ft
A = (33*23) ft
A = 759 sg ft
Area of the sidewalk = 759 - 600
A = 159 sq ft