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What is the point-slope formula and how is it used?
Given a straight line with slope m and a point (p,q) on the line, the point-slope formula of the line is (y - q) = m(x - p) It is used to represent a straight line in the Cartesian plane. This allows techniques of algebra to be used in solving problems in geometry.
What is the slope of the line that passes through 0 1 and is parallel to y 5 x 3?
The slope of any line parallel to another line is the slope of that line. In the form y = mx + c, the coefficient of x, ie the m, is the slope of the line. Thus any line parallel to y = 5x + 3 has slope 5.
How do you find the equation of a line that is perpendicular to y equals 9 divided by 8x plus 1 and passes through the point 18 -8?
The "point slope" formula would be used. This is Y-Y1=m(X-X1) where Y1 and X1 are points the line passes through. M is the slope, so to find the slope of a line perpendicular, take it's opposite reciprocal which would be -8x/9. So Y-(-8)=-8/9(X-18) distribute -8/9 into X-18 and add the 8 on the left side of the = to get the slope intercept form.
Which expression can be used to find 38 percent of 22?
You can find 38 percent of 22 with the expression 22*38/100
What is slope and why is the letter m used to represent slope in formulas?
The slope of a graph is a measure of the rate at which it rises. It is measured as the "rise"/"run" which is the ratio of the increase in height for each unit move in the horizontal direction. The slope of a line going from bottom left to top right is positive. "M" stood for the Modulus of slope.
