Question

the expression (4x^2-3x+1)-(x^3+2x+7)
what is the coefficient of the x term in the simplified expression?

what is an equation of a line parallel to the line with equation 2 y=14-6x
a.y=-6x+18 b.y=-3x-9 c.y=6x+3 d.y=3x+8

Solve linear system, which substitution of unkowns is proper?
a. sub 5x-16 for y in first eqn
b. sub 5x+16 for y in first eqn
c. sub 5x+12 for y in first eqn
d. sub 7y-4 for x in second eqn

Use line with eqn x+5y=5 and 5x+py=5
a. find p if the lines are parallel
b. find p if the lines perpendicular
I don"t know what to do here, help!

a line passes through the points (6,4) and (5.3), so what is the equation of the line in point-slope form?

Answer 1

In your first question, do you know how to simplify an expression - that is remove parentheses?

Question #2 parallel lones have the same slope

I don't understand question #3

Question #4 perpendicular lines have slopes that are negative reciprocal s of each other.