If Janelle grows three inches over the summer and was 60 inches tall at the beginning of summer, what percent did her height
1 answer:
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Formula for point-slope: 
Plug in the values (1):
{Choice B}
Plug in the values (2):
{Choice C}
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[For (3) and (4) we need to solve for slope]
(3)
First, solve for slope.
Formula for slope:
Plug in values:
Slope:
Second, we must plug into point-slope form.
Formula for point-slope:
Plug in the values:
{Choice C}
(4)
First, solve for slope.
Formula for slope:
Plug in values:
Slope:
Second, we must plug into point-slope form.
Formula for point-slope:
Plug in the values:
{Choice D}
Plug in the values (1):
Plug in the values (2):
_______________________
[For (3) and (4) we need to solve for slope]
(3)
First, solve for slope.
Formula for slope:
Plug in values:
Slope:
Second, we must plug into point-slope form.
Formula for point-slope:
Plug in the values:
(4)
First, solve for slope.
Formula for slope:
Plug in values:
Slope:
Second, we must plug into point-slope form.
Formula for point-slope:
Plug in the values: