The coordinate grid shows the plot of four equations. a coordinate plane is shown with four lines graphed. line a crosses the x
axis at negative 3.5 and the y axis at 7. line b crosses the x axis at 6.5 and the y axis at 4.5. line c is horizontal and crosses the y axis at 1. line d crosses the x axis at 0.5 and the y axis at 1.which set of equations has (−1, 5) as its solution? a and b b and d a and c b and c
2 answers:
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1. when you see 4(x² - 1), then you have to multiply 4 with everything in the bracket. keep in mind that you always have to be cautious of the sign whether it is a positive or a negative.
positive ×/÷ positive = positive
negative ×/÷ negative = positive
positive ×/÷ negative = negative
negative ×/÷ positive = negative
^ you have to remember this.
2. only like terms (same alphabet) can plus or minus each other.
3. simplify by taking out the common factor and placing it outside the bracket.
positive ×/÷ positive = positive
negative ×/÷ negative = positive
positive ×/÷ negative = negative
negative ×/÷ positive = negative
^ you have to remember this.
2. only like terms (same alphabet) can plus or minus each other.
3. simplify by taking out the common factor and placing it outside the bracket.