The function y=−0.25x+0.7 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer. Identify the x and y intercepts.
Accepted Solution
A:
Answer: x-intercept: 2.8 hours y-intercept: 0.7 . . . . fraction of power remainingStep-by-step explanation:The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.To find the x-intercept, set y=0 and solve for x: 0 = -0.25x +0.7 0.25x = 0.7 . . . . . add .25x x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)The x-intercept is 2.8; the y-intercept is 0.7.