Find the slope of the line through each pair of points

(0, -7), (-17, 11)

To find the slope (m), use the slope formula:

     and plug in the two points

(-17, 11) = (x₁, y₁)

(0, -7) = (x₂, y₂)

[lines usually go from left to right, so the point furthest to the left is the 1st point]

 [two negative signs cancel each other out and become positive]

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

step-by-step explanation: