Nikki R.

asked • 08/24/19

Confusion on Practice Sheet

5x+y2=25 (Not a linear equation because any exponent higher than one is "an issue) 8+y=4x (is a linear equation but I don't know how to put it in standard form, please help?) 9xy-6x=7 (not a linear equation because it has both X and y multiplied together) 4y2+9=-4 (exponent higher than one so not a linear equation) 12x=7y-10y (12x=-3y? Not a linear equation?) y=4x+x (y=5x? Not a linear equation?) I don't understand most of this.

2 Answers By Expert Tutors

By:

Lori O. answered • 08/24/19

20+ yrs experience teaching middle school math and Algebra 1.

Nikki R.

Yes. The problem does ask for the equations to be put in standard form.
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08/24/19

Lori O.

CORRECTION: i didnt pay attention 1& 4 the y is squared, I thought the x was squared.(SO SORRY) # 2, 5, 6 should look like Ax+By=C #2 8+y=4x will be -4x+y=-8 Dont forget when you move something to the other side of the = sign YOU MUST change the sign
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08/24/19

Brenda D. answered • 08/24/19

Math's a tool not a terror

Lori O.

If you DO need them in standard form, the 2nd, 5th, and 6th equations need to look like Ax + By = C. The 1st and 4th need to look like ax2 + bx + c When rearranging them if something gets moved on the other side of the = sign MAKE SURE you change the sign.
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08/24/19

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