HSF.IF.B.4 math practice. Learn by doing.

HSF.IF.B.4 practice covers for a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities. Work through 8 free questions with answers and explanations, then continue in the related math games.

Grade 91 mapped skills
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Skills aligned to HSF.IF.B.4

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8 free questions · 0/0 correct

Practice playeasy

The yy-intercept of the graph of y=2x+10y = -2x + 10 in the coordinate plane is (0,y)(0, y). What is the value of yy?

At the yy-intercept, x=0x = 0, so y=2(0)+10=10.y = -2(0) + 10 = 10\textsf{.}

Practice playeasy

The yy-intercept of the graph of y=4x+8y = 4x + 8 in the coordinate plane is (0,y)(0, y). What is the value of yy?

At the yy-intercept, x=0x = 0, so y=4(0)+8=8.y = 4(0) + 8 = 8\textsf{.}

Practice playeasy

The yy-intercept of the graph of y=5x+20y = -5x + 20 in the coordinate plane is (0,y)(0, y). What is the value of yy?

At the yy-intercept, x=0x = 0, so y=5(0)+20=20.y = -5(0) + 20 = 20\textsf{.}

Practice playeasy

The xx-intercept of the graph of y=2x8y = 2x - 8 in the coordinate plane is (x,0)(x, 0). What is the value of xx?

At the xx-intercept, y=0y = 0, so 0=2x80 = 2x - 8, 2x=82x = 8, and x=4.x = 4\textsf{.}

Practice playeasy

The xx-intercept of the graph of y=3x+12y = -3x + 12 in the coordinate plane is (x,0)(x, 0). What is the value of xx?

At the xx-intercept, y=0y = 0, so 0=3x+120 = -3x + 12, 3x=123x = 12, and x=4.x = 4\textsf{.}

Practice playeasy

The xx-intercept of the graph of y=5x15y = 5x - 15 in the coordinate plane is (x,0)(x, 0). What is the value of xx?

At the xx-intercept, y=0y = 0, so 0=5x150 = 5x - 15, 5x=155x = 15, and x=3.x = 3\textsf{.}

Practice playeasy

The xx-intercept of the graph of y=6x+24y = 6x + 24 in the coordinate plane is (x,0)(x, 0). What is the value of xx?

At the xx-intercept, y=0y = 0, so 0=6x+240 = 6x + 24, 6x=246x = -24, and x=4.x = -4\textsf{.}

Practice playmedium

The xx-intercept of the graph of y=4x20y = -4x - 20 in the coordinate plane is (x,0)(x, 0). What is the value of xx?

At the xx-intercept, y=0y = 0, so 0=4x200 = -4x - 20, 4x=20-4x = 20, and x=5.x = -5\textsf{.}

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