A metal worker wants to figure out the cost of making a rectangular iron bar. He knows that the required dimensions of the bar are 8. 0 cm (width), 0. 40 cm (height), and 310 cm (length). If this kind of iron costs $0. 015 per cm3, what is the cost of making the bar (to the nearest dollar)? $5 $15 $37 $93.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

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step-by-step explanation:

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram