The function m is given in three equivalent forms.Which form most quickly reveals the y-intercept?Choose 1 answer:(A) m(x)=2x2+16x+24(B) m(x)=2(x+4)2−8(C) m(x)=2(x+6)(x+2 )What is the y-intercept?y-intercept =(0,□)
Q. The function m is given in three equivalent forms.Which form most quickly reveals the y-intercept?Choose 1 answer:(A) m(x)=2x2+16x+24(B) m(x)=2(x+4)2−8(C) m(x)=2(x+6)(x+2 )What is the y-intercept?y-intercept =(0,□)
Definition: The y-intercept of a function is the point where the graph of the function crosses the y-axis. This occurs when the input x is equal to 0. To find the y-intercept, we need to evaluate the function at x=0.
Evaluate Option (A): Let's evaluate option (A) m(x)=2x2+16x+24 at x=0.m(0)=2(0)2+16(0)+24=0+0+24=24The y-intercept for option (A) is (0,24).
Evaluate Option (B): Now let's evaluate option (B) m(x)=2(x+4)2−8 at x=0. m(0)=2(0+4)2−8=2(4)2−8=2(16)−8=32−8=24 The y-intercept for option (B) is also (0,24).
Evaluate Option (C): Finally, let's evaluate option (C) m(x)=2(x+6)(x+2) at x=0.m(0)=2(0+6)(0+2)=2(6)(2)=2×12=24The y-intercept for option (C) is (0,24) as well.
Comparison: All three options give us the same y-intercept, (0,24). However, the question asks which form most quickly reveals the y-intercept. The standard form (A) m(x)=2x2+16x+24 directly shows the constant term +24, which is the y-intercept when x=0. Therefore, option (A) most quickly reveals the y-intercept without any additional calculations or transformations.
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