document.write( "Question 110338This question is from textbook algebra 1
\n" ); document.write( ": what is the slope and y-intercept of these equation? y=7x+1, y=-3x-4, y=-4, y-2x=3.2, y=x+3 ova 4, 2y=6x+16 \n" ); document.write( "

Algebra.Com's Answer #80403 by MathLover1(20850) $\"\"$ $\"About$

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1. $\"y=7x%2B1\"$
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\n" ); document.write( "or $\"-7x+%2B+y+=+1\"$ \r
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"-7+x+%2B+1+y+=+1\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+--7%2F1\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 1/-7 = -0.142857142857143.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 1/1 = 1.
Slope is --7/1 = 7.
Equation in slope-intercept form: y=7*x+1.

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\n" ); document.write( "\n" ); document.write( " $\"y=-3x-4\"$ \r
\n" ); document.write( "\n" ); document.write( "or $\"3x+%2B+y+=+-4\"$ \r
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"3+x+%2B+1+y+=+-4\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+-3%2F1\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. -4/3 = -1.33333333333333.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is -4/1 = -4.
Slope is -3/1 = -3.
Equation in slope-intercept form: y=-3*x+-4.

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\n" ); document.write( "\n" ); document.write( " $\"y=-4\"$ \r
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

This equation defines a horizontal line. There is no X intercept. Y intercept is $\"-4%2F1=-4\"$
\n" ); document.write( "\n" ); document.write( " $\"graph%28+500%2C+500%2C+-10%2C+10%2C+-4+-+10%2C+-4%2B10%2C+-4%2F1+%29+\"$

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\n" ); document.write( "\n" ); document.write( " $\"y-2x=3.2\"$
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"-2+x+%2B+1+y+=+3.2\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+--2%2F1\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 3.2/-2 = -1.6.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 3.2/1 = 3.2.
Slope is --2/1 = 2.
Equation in slope-intercept form: y=2*x+3.2.

$\"graph%28+500%2C+500%2C+-1.6-8%2C+-1.6%2B8%2C+3.2-8%2C+3.2%2B8%2C+2%2Ax%2B3.2+%29+\"$ \n" ); document.write( "

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\n" ); document.write( "\n" ); document.write( " $\"y=x%2B3%2F4\"$ \r
\n" ); document.write( "\n" ); document.write( "or $\"-x+%2B+y+=+3%2F4\"$ \r
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"-1+x+%2B+1+y+=+0.75\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+--1%2F1\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 0.75/-1 = -0.75.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 0.75/1 = 0.75.
Slope is --1/1 = 1.
Equation in slope-intercept form: y=1*x+0.75.

$\"graph%28+500%2C+500%2C+-0.75-8%2C+-0.75%2B8%2C+0.75-8%2C+0.75%2B8%2C+1%2Ax%2B0.75+%29+\"$ \n" ); document.write( "

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\n" ); document.write( "\n" ); document.write( " $\"2y=6x%2B16\"$ ЕЕЕboth sides divide by $\"2\"$
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\n" ); document.write( " $\"y=+3x%2B8\"$ ЕЕЕ
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\n" ); document.write( " $\"-3x+%2B+y+=+8\"$ ЕЕЕ\r
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"-3+x+%2B+1+y+=+8\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+--3%2F1\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 8/-3 = -2.66666666666667.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 8/1 = 8.
Slope is --3/1 = 3.
Equation in slope-intercept form: y=3*x+8.

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