# Algebra Help, URGENT! DUE TOMORROW!

• Apr 27th 2008, 03:02 PM
jscalalamoboy
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! • Apr 27th 2008, 03:11 PM icemanfan Quote: Originally Posted by jscalalamoboy 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 $\displaystyle (x_1, y_1)$ and $\displaystyle (x_2, y_2)$ use slope = $\displaystyle \frac{y_2 - y_1}{x_2 - x_1}$

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

3. $\displaystyle y = 400 + .05x$

4. Standard form is $\displaystyle ax + by = c$. 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 $\displaystyle x - \frac{1}{2} \geq \frac{2}{3}$ or ...?