A number n, is multiplied by -0.7 the product is -1/2 what is the value of n

I’m assuming that -0.7 was multiplied with -1/2

20y5 times 2 is 1010 times -2 is -20, plus y

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!