When Emma was born she was 20.5 inches long. At her 6-month checkup, she was 26.25 inches long. Emma's length . Percent Change = Amount of Change Original Amount = 5.75 20.5 = 0.2804 The approximate percent change in her length was?

28%

Step-by-step explanation:

Emma's length at birth = 20.5 inches.

Her length after 6 months = 26.25 inches

Change in Emma's length = (26.25 - 20.5) inches

                                            = 5.75 inches

Percentage change in her length = × 100

                                                        = × 100

                                                        = 28.049%

The approximate percent change in her length is 28%.

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