1. Find the discriminant for the following equation: x2-3x -10.
2 answers:
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Answer:
see below
Step-by-step explanation:
The point-slope form of the equation of a line is ...
y -h = m(x -k)
for a line with slope m through point (h, k).
Comparing this to the given equation, you see that ...
h = -2, m = 1, k = -4
The line has a slope of 1 and goes through the point (-4, -2). This information is useful for graphing.
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You can also rearrange the equation to slope-intercept form by subtracting 2 from both sides.
y = x +2
This has a slope of 1 and crosses the y-axis at y=2. It graphs the same as the above.
It's easier to write if you convert 1/4 into 0.25.
Then you use algebra to find that he ran the mile in 6.4 minutes.
Then you use algebra to find that he ran the mile in 6.4 minutes.