Evaluate using substitution.
Mathematics
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Write an equation of the line with slope -1/2 and containing the point (3, ? 4) .
What will be an ideal response?
Mathematics
Multiply mentally.(-7 + 3x)(7 + 3x)
A. 9x2 + 42x - 49 B. 9x2 - 42x - 49 C. 9x2 - 49 D. x2 - 49
Mathematics
Find the LCM.10xy, 15x2
A. 30x3y B. 30x2y C. 30xy3 D. 30xy
Mathematics
Solve the problem.The equation of a line passing through two distinct points (x1, y1) and (x2, y2) is given by 
. Use the determinant to write an equation for the line passing through 
and 
. Express the line's equation in standard form.
A. -8x - 17y - 13 = 0 B. 3x + 9y + 40 = 0 C. -5x - 8y + 27 = 0 D. 8x + 17y - 13 = 0
Mathematics