The graph of y = –4x + 7 is:

a. a point that shows the y-intercept.
b. a line that shows the set of all solutions to the equation.
c. a line that shows only one solution to the equation.
d. a point that shows one solution to the equation.

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

What is the quadric regression equation that fits these data

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.