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March 24, 2017

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I do not understand point-slope and standard form. Please help me.

  • linear equations - ,

    Can you be more specific with your question?
    Is the "standard form" y = mx + b ?

  • I NEED HELP. PLEASE - ,

    Example: point slope is y+5=-4/1(x+3)

    y + 5 = 4(x+3)

    y + 5 = 4x + 12

    subtract 5 on both sides.

    y = 4x + 7

    subtract 4x on both sides.

    -4x + y = 7

    divide both sides by -1.

    [[ 4x - y = -7 ]]

    You can search on websites and have some examples like this one

  • I NEED HELP. PLEASE - ,

    Thanks!
    How would you know whether to add or subtract?

  • I NEED HELP. PLEASE - ,

    Solve for y = mx + b or y - y1 = m (m - x1). Your line will be in slope intercept form.

    Now add/subtract/multiply/divide in order to get to Ax + By = C, where A,B&C are non-fractions and A>0.

    For example: Write the equation of a line in standard form that has a slope of 4 and passes through (-3,5).

    y - y1 = m (x - x1)

    y - 5 = 4 (x - (-3))

    y - 5 = 4x + 12

    Add 5 to both sides.

    y = 4x + 17

    Subtract 4x from both sides to get the variables on the same side.

    -4x + y = 17

    The pattern for Standard Form shows that the coefficient with x can't be negative when it expresses A>0. So, multiply everything by -1, keeping in mind you can do anything to an equation and it will remain true as long as you do it to both sides.

    -1(-4x + y = 17)

    4x - y = -17

    brightstorm is a website you can get all of this. I got all of this from it but i forgot how to put a link on it

  • I NEED HELP. PLEASE - ,

    Thank you.

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