exam Maths Puzzle Numerical Ability

determine the equation of the line, in slope-intercept form, that contains the points
(-5,9) and (-5,-2)

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exam Other Question

there are 4 less than twice the amount of nickels. If the value of the coins are $3.60, how many nickels are there? how many quarters? indicate which of the following sets of lines are parallel,perpendicular, or neither.
y=2x-5
y=2x+5

3x+y=5
-x+3y=6

3x+y=5
x+y=3