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3 years ago

What is the graph of the equation 3x-4y=12?

Mathematics

1 answer:

notsponge [240]3 years ago

8 0

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Use the slope-intercept form to find the slope and y-intercept.

Tap for more steps...

Slope:

Y-Intercept:

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miskamm [114]

2 is the coefficient. Y is 2.5

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3 years ago

Tim walks at a pace of 80 meters per minute. His school is 4 km away. If school begins at 8:00, what time does Tim need to leave

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Answer:

7:10

Step-by-step explanation:

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3 years ago

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What is 3.55 divided by 5 equal 3 tenthsdivided by 5 + 5 hundredths divided by 5 equal

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3 years ago

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2 years ago

Determine whether the equation defines y as a function of x. x+y=9 and x^2+y^2=1 and x=y^2

Murrr4er [49]

Answer:

Function: $x+y=9$

Not Function: $x^2+y^2=1$ and $x=y^2$

Step-by-step explanation:

Given

$x+y=9$

$x^2+y^2=1$

$x=y^2$

Required

Determine if $y$ is a function of $x$

Solving x+y=9

$x+y=9$

Make y the subject of formula

$y = 9 - x$

Hence; y is a function of x

Solving $x^2+y^2=1$

$x^2+y^2=1$

Subtract x² from both sides

$y^2=1 - x^2$

Square root of both sides

$y =\± \sqrt{1 - x^2}$

This implies that

$y =\sqrt{1 - x^2}$ or $y =-\sqrt{1 - x^2}$

Because $y$ can be any of those two expressions, it is not a function.

Solving $x=y^2$

$x=y^2$

Reorder

$y^2 = x$

Take square roots

$y = \±\sqrt{x}$

This implies that

$y = \sqrt{x}$ or $y = -\sqrt{x}$

Because $y$ can be any of those two expressions, it is not a function.

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3 years ago