The sale price of an item is $160 after a 20% off discount. What was the original price of the item?
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Let's consider that 23.5 is 100% of rainfall.
23.5 ..... 100 %
21.2 ..... x %
Calculate x:
, which is around 90.2%.
The percent of decrease is 100 - 90.2 = 9.8 %.
23.5 ..... 100 %
21.2 ..... x %
Calculate x:
The percent of decrease is 100 - 90.2 = 9.8 %.
Make an x and y table, and pick any values to plug in for x in the equation.
I will use the numbers from -2 to 2
Now plug in the values you picked for x into the equation to find its y-value
x = -2
y = 3x - 1 Plug in -2 for x
y = 3(-2) - 1
y = -6 - 1
y = -7
x = -1
y = 3x - 1
y = 3(-1) - 1
y = -3 - 1
y = -4
Do the same for the rest of the numbers, and graph each point and draw a line connecting them.
