A line has a slope of 1 fourth and passes through point open paren 0 point 4 comma negative 1 half close paren What is the value of the y -intercept?

Use the slope-intercept equation y = mx + b, where b is the y-intercept. Substituting the slope 1/4 and the point (0.4, −1/2) gives b = −1/2 − (1/4)(0.4) = −0.5 − 0.1 = −0.6, so the y-intercept is negative 0.6, choice C.

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