Find the liner equation from this information passing through the
points (4,-9) & (2,-4)

The equation is 2y + 5x = 2

Step-by-step explanation:

The two points given are (x1 , y1) = (4,-9) and (x2 , y2) = (2,-4)

Step 1: find out the slope of the equation

Slope m of any equation =

Hence, m = (-5/2)

Step 2: Substitue m in the equation y = mx + b

⇒

Step 3:  put any of the two points in above equation and find y-intercept b

⇒Using (2,-4), we get  2y + 5x =   2(-4) + 5 (2) = -8 + 10 = 2

⇒  b = 2

Step 4: Substitute the value of b in the above equation

we get, 2y + 5x = b = 2

Hence, the equation is 2y + 5x = 2

height = 12 cm

Step-by-step explanation:

Parallelogram 1:

Area =  base *height = 20 * 15 = 300 sq. cm

Area of parallelogram 2 = area of parallelogram 1

25 * height = 300

       height = 300/25

height = 12 cm