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CliffsStudySolver Geometry
148. Find the y-intercept of ax + by = c. Answer: y = cb If you answered correctly, go to problem 149. If you answered incorrectly, review “Standard Form of a Linear Equation” on page 276. 149. Write the point-slope form of a linear equation. Answer: y - y1 = m(x - x1) If you answered correctly, go to problem 151. If you answered incorrectly, go to problem 150. 150. Write the slope-y-intercept form of a linear equation. Answer: y = mx + b If you answered correctly, go to problem 151. If you answered incorrectly, review “Equations of Lines” on page 275. 151. Find the equation of a line containing the points (3, 4) and (-1, -4) and write them in the point-slope form. Answer: y - 4 = 2(x - 3) or y + 4 =2(x + 1) If you answered correctly, you are finished! Congratulations. If you answered incorrectly, go to problem 152. 152. Rewrite the equation from 151 in slope-y-intercept form. Answer: y = 2x - 2 If you answered correctly, you are finished! Congratulations. If you answered incorrectly, review “Equations of Lines” on page 275.