15 + x = -7
First, subtract 15 from both sides. / Your problem should look like:
Second, subtract -7 - 15 to get -22. / Your problem should look like:
Answer:
x = -22 (D)
x = time in minutes
y = distance remaining
Steve starts at home when the time is x = 0 minutes. The y value y = 40 pairs up with this x value. This is shown by the point (0,40) on the diagonal line, aka the y intercept. The y intercept is where the line crosses the y axis.
The y = 40 indicates that Steve has 40 miles remaining when he starts at home. In other words, the distance from home to work is 40 miles.
The x intercept is where the diagonal line crosses or touches the x axis. The x intercept is (45,0) which represents the idea that 45 minutes have passed by. The y = 0 means that he has 0 miles left go to. Steve has reached the office at this point.
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Answers:
Steve's office is located 40 miles from home
It takes him 45 minutes to travel this distance
If we simplify like terms on left and right sides we gwt
16x + 9 = 4x
Its B
A because radius is half of the diameter
