The equation of the line passing throught the points 
and 
has a form
Now the equation of the line passing through points (0, 3) and (−5, 2.5) is
Simplify it:
This equation is in slope-intercept form.
Answer: y=0.1x+3.
Let us assume the amount of money invested in CD = x
Then
Amount of money invested in savings bond = 6000 - x
Percentage of interest in CD = 4%
Percentage of interest in savings bond = 7%
Amount of interest gained in 1 year = $360
Now
0.04x + [(6000 - x) * 0.07] = 360
0.04x + 420 - 0.07x = 360
0.03x = 60
x = 2000
Then
Amount of money invested in the CD account = $2000
Amount of money invested in savings bond = 6000 - 2000
= 4000 dollars
On your X-axis, go to -5 and identify which Y-coordinate it is. For this problem, it would be -2.
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