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What are the y-intercept and slope in 2x + 5y − 25 = 0?

Answer and explanation

Correct answer: y-intercept = 5, slope = −2/5

The governing concept is the slope-intercept form y = mx + c, where m is the slope and c is the y-intercept. Begin with 2x + 5y - 25 = 0. Move 2x and -25 to the other side: 5y = -2x + 25. Divide every term by 5 to obtain y = (-2/5)x + 5. Therefore, m = -2/5 and c = 5, so option A is correct. Option B changes the signs of both values. Option C treats the original constant and coefficient as the answer without isolating y, and option D similarly misreads the coefficients. A quick check is x = 0: the equation gives y = 5, confirming the y-intercept.

Related tags

SlopeY-InterceptStandard-FormLinear-EquationsSlope And Y InterceptIntroduction To PolynomialsMathematicsClass 9 Mcq

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