Find an equation in point-slope form for the line having the slope m= - 4 and containing the point (4,5).
1 answer:
<h2>Answer: y - 5 = - 4 (x - 4)</h2>
Step-by-step explanation:
The point-slope form of a line is (y - y₁) = m(x - x₁)
Since we know the slope (m) is -4
And the point ( x₁, y₁ ) is (4, 5)
Then we can just plug these into the equation above:
⇒ y - 5 = - 4 (x - 4)
<em>I often use Desmos to check my answer. As seen below, the equation does pass through the point (4, 5).</em>
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Simple interest calculates interest on initial amount only. The investment by Hannah was : Option A: $4800
<h3>How to calculate simple interest amount if rate of interest is R% annually?</h3>Suppose that the initial amount of investment is P
And the rate of simple interest is R% annually,
And the time of investment is T years.
Then, the amount of simple interest is calculated as:
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Putting values in the above formula, we get;
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The investment by Hannah was : Option A: $4800
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Step-by-step explanation:
use the midpoint formula
substitute into the midpoint formula
solve the above
(
so the x coordinate if your midpoint is 3
the y coordinate of your midpoint is 1
(3;1)