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Math Help - Algebra Help, URGENT! DUE TOMORROW!

  1. #1
    Junior Member
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    Algebra Help, URGENT! DUE TOMORROW!

    1. Find the rate of change between the two points (4,6) and (8,10) and give the unit of measure.
    X is measured in square yards and y is measured in dollars.
    2. Write in slope-intercept form and the equation of the line through the points (-5,4) and (7,-2).
    3. A salesman receives a salary of $400 per week plus a commission of 5% of sales. Write a linear model for the weekly income y in terms of sales x.
    4. Rewrite the equation y=(-6/5)x+3/2 in standard form with integer coefficients.
    5. Solve the inequality |x-1/2|> 2/3

    THANKS!
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  2. #2
    MHF Contributor
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    Quote Originally Posted by jscalalamoboy View Post
    1. Find the rate of change between the two points (4,6) and (8,10) and give the unit of measure.
    X is measured in square yards and y is measured in dollars.
    2. Write in slope-intercept form and the equation of the line through the points (-5,4) and (7,-2).
    3. A salesman receives a salary of $400 per week plus a commission of 5% of sales. Write a linear model for the weekly income y in terms of sales x.
    4. Rewrite the equation y=(-6/5)x+3/2 in standard form with integer coefficients.
    5. Solve the inequality |x-1/2|> 2/3

    THANKS!
    1. Given two points (x_1, y_1) and (x_2, y_2) use slope = \frac{y_2 - y_1}{x_2 - x_1}

    2. Again calculate the slope m of the line and input a point into y = mx + b to determine b.

    3. y = 400 + .05x

    4. Standard form is ax + by = c. To get rid of the fractions, multiply both sides of the equation by 10.

    5. This represents two inequalities. What are the two inequalities? Either x - \frac{1}{2} \geq \frac{2}{3} or ...?
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