exam
Maths Puzzle
Numerical Ability
Use an augmented matrix to solve the linear system.
x+4y-2z=3 Step #1 [1 4 -2: 3]
x+3y+7z=1 [1 3 7 :1]
2x+9y+z=8 [2 9 1 :8]
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exam Other Question
write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
(2,-3)and (2,4)
I am having problems with this one
x^2+7x-1=0