HELP?
The amount of interest earned in a savings account varies directly with the amount of money in the account. A certain bank offers a 2% savings rate. Write a direct variation equation for the amount of interest y earned on a balance of x. Then graph...

Question

anonymous · Answer

Use the direct variance formula: y=kx.

anonymous · Answer

i need help on the graph part

ranga · Answer

y = kx.  Here the interest rate is 2% = 2/100 = 0.02

So y = 0.02x

Compare this to the equation of a straight line in the slope-intercept form:
y = mx + b  where m is the slope and b is the y-intercept.

If you compare y = 0.02x   and  y = mx + b
you can see the slope = 0.02 and the y-intercept b = 0.  That means it is a straight line passing through the origin with a very small slope.

goformit100 · Answer

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ranga · Answer

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