Guys help me! 1. What is the domain and range? Help plsss!

Mathematics

1 answer:

Valentin [98]2 years ago

6 0

Range is the highest value minus the lowest value

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Steven rode a bike for 132.8 miles while training for a marathon. He biked 8.3 miles each day. How many days did he train for th

MA_775_DIABLO [31]

8.3x=132.8
Divide 132.8 into 8.3 groups

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2 years ago

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Without graphing f(x)=3x-1.3, determine if the graph goes through each point. <br> (0,-1.3)

jekas [21]

Answer:

Yes

Step-by-step explanation:

In the equation, -1.3 is the y-intercept. The y-intercept always has a x value of 0. On the point (0,-1.3), it matches the y-intercept and is therefore part of the function/equation.

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2 years ago

What is the equation of the line that is parallel to the given line and passes through the point (2, 3)?

KonstantinChe [14]

$\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{We have the points (-4, 0) and (4, -4)}\\\\\text{substitute:}\\\\m=\dfrac{-4-0}{4-(-4)}=\dfrac{-4}{8}=-0.5\\\\\text{therefore we have the equation of the given line in slope-intercept form:}\\y=-0.5x+b.\\\\\text{Parallel lines have the same slope.}\\\\\text{Therefore the line equation from question is y = -0.5x + b.}$

$\text{It passes through the point (2, 3).}\\\\\text{Substitute the coordinates of the given point to the equation of the line}:\\\\3=-0.5(2)+b\\3=-1+b\qquad|+1\\4=b\to b=4\\\\\text{therefore}\ y=-0.5x+4\qquad|+0.5x\\\\0.5x+y=4\qquad|\cdot2\\\\\boxed{x+2y=8\to B.)}$