I will try to give the first one Brainlyest plz answer
1 answer:
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<u>Given</u>:
Let time be the independent variable.
Let mile marker be the dependent variable.
On one highway, Gabriela noticed that they passed mile marker 123 at 1:00. She then saw that they reached mile marker 277 at 3:00 and Mr. Morales was driving at a constant speed.
The coordinates of the points on this line are (1,123) and (3,277)
We need to determine the slope of the line.
<u>Slope of the line:</u>
The slope of the line can be determined using the formula,
Substituting the points (1,123) and (3,277) in the above formula, we get;
Therefore, the value of the slope of this line is 154.
In the equation y = 2x + 4, you know that the gradient is 2 (the number before x).
for a perpendicular line you need the negative reciprocal of 2, which is -
.
you then need to use the equation
y -
= m(x - 
)
substitute in your coordinates:
y - -2 = - (x - 3)
simplify:
y + 2 = -0.5x + 1.5
rearrange:
y = -
-
for a perpendicular line you need the negative reciprocal of 2, which is -
you then need to use the equation
y -
substitute in your coordinates:
y - -2 = -
simplify:
y + 2 = -0.5x + 1.5
rearrange:
y = -