# How Can I Solve My Grade 12 Algebra-Geometry Problem Online?

• xLaser
In summary, the equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept. Two lines are parallel if their slopes are equal. The equation of a plane in point-normal form is A(x-x0) + B(y-y0) + C(z-z0) = 0, where A, B, and C are coefficients of the normal vector and (x0, y0, z0) is a point on the plane. The distance between a point P and a plane ax + by + cz + d = 0 is given by d = |axp + byp + czp + d| / √(a^2 +
xLaser

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ditto above.

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i can't help you with the question, but try hotmath.com, they may have your book there, and they go through most every question with a full explanation of each step

edit: ah, after just checking the site, they've changed it so that you have to sign-up. however, if you have some good internet friends, like at warez sites or something, you may be able to get a password

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## 1. What is the equation of a line in slope-intercept form?

The equation of a line in slope-intercept form is y = mx + b, where m is the slope of the line and b is the y-intercept.

## 2. How do you determine if two lines are parallel?

If the slopes of two lines are equal, then they are parallel.

## 3. What is the equation of a plane in point-normal form?

The equation of a plane in point-normal form is A(x-x0) + B(y-y0) + C(z-z0) = 0, where A, B, and C are the coefficients of the normal vector and (x0, y0, z0) is a point on the plane.

## 4. How do you find the distance between a point and a plane?

The distance between a point P and a plane ax + by + cz + d = 0 is given by the formula d = |axp + byp + czp + d| / √(a2 + b2 + c2), where (xp, yp, zp) is the coordinates of the point P.

## 5. How do you find the intersection of two planes?

To find the intersection of two planes, set the equations of the planes equal to each other and solve for the values of x, y, and z. The resulting point is the intersection of the two planes. If the two planes are parallel, there will be no solution.

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