The graph of a sinusoidal function intersects its midline at (0,-2)(0,−2)left parenthesis, 0, comma, minus, 2, right parenthesis and then has a minimum point at \left(\dfrac{3\pi}{2},-7\right)( 2 3π ​ ,−7)left parenthesis, start fraction, 3, pi, divided by, 2, end fraction, comma, minus, 7, right parenthesis.

5/ 1/3=15 i think sorry if im wrong

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!